2014
New York City, New York, United States

Engineer had his own jeep and drove Sherman to school. While driving, Engineer gave Sherman some reminders about school.

Engineer: Remember, Sherman, "i" before "e", except after "c". 

Sherman: I know, Mr. Conagher! 

Engineer: And don't forget about the commutative principle. Two plus three equals three plus two. 

Sherman: I know, Mr. Conagher! 

Engineer: And if you have to go to the bathroom... just raise your hand proudly and say, "I have to go." 

Sherman: I will, Mr. Conagher. 

Engineer: And remember, the No.2 pencil is standard for most uses, but there are times when a No. 1 comes in handy. Your father left a little pencil chart in your backpack, which you can consult if it ever becomes a judgment call. 

Sherman: I think I'll be okay! 

Engineer drove up to the entrance of the school, where other parents were dropping the kids off. Sherman got off the jeep and slung his backpack on his back and started walking towards the doors to the school.

Sherman: Okay, bye, Mr. Conagher.

Engineer: Wait. 

Sherman: See you after school. 

Engineer: Sherman! 

Sherman: I gotta go. I gotta sign up for the clubs. 

Engineer: No one is more in favor of participation in school clubs than I. But before you go, your father wanted you to have this. 

Engineer handed a small flute-like device to Sherman.

Sherman: Thanks. What is it? 

Engineer: A dog whistle. 

Sherman tried blowing into it but no sound emitted from it.

Sherman: It doesn't work, Mr. Conagher.

Engineer: Well, it works fine, Sherman. It's just a frequency only dogs like Mr. Peabody can hear. 

Sherman: Oh, cool. 

Engineer: Mr. Peabody said, "Let that little keepsake be a reminder to you, that no matter what challenges you face, no matter how far away he might seem...

Sherman had already gone through the doors to the school.

Sherman: Bye, Mr. Conagher!

The doors closed as Engineer looked on solemnly, never getting a chance to finish what he was gonna say.

Engineer: ...he's with you."

Engineer sighed as he turned on the ignition and drove away.

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For comedic purposes, the TF2 Soldier (also Engineer's teammate) is Sherman's history teacher.

Soldier: George Washington. Who can tell me who he is? 

Sherman: [hand raised] Oh, me! I can! I can! 

Soldier: [looks at attendance sheet] Erm... yes, Sherman!

Sherman: The first president of the United States of America. 

Soldier: Affirmative! And when President Washington was a little boy... what kind of tree did he cut down? 

Sherman: [hand raised] Ooh! Ooh, me! Me! Me! 

Soldier: Yes, Penny? 

Penny: A cherry tree. 

Sherman: Apocryphal. 

Soldier: Apocalypse?

Sherman: Not apocalypse. "Apocryphal." It means that story is not true. 

Soldier: Oh really? 

Sherman: Yeah. George Washington never cut down a cherry tree... and he never said he couldn't lie. People made those stories up to teach kids a lesson about lying... but they're not true. He did cross the Delaware River, Christmas night, 1776, though. My dad and Mr. Conagher took me there this summer. We crossed it, too. I fell in. 

Sherman and the class laughed.

Soldier: [laughs] Looks like someone really knows their history, huh, Penny? 

As Sherman happily sharpened his pencil, Penny looked at him angrily and in jealousy, snapping her own pencil in half.

Time Skip (cuz I'm too lazy to write the cafeteria scene)

Principal Purdy: Mr. Conagher, thank you for coming in for Mr. Peabody on such short notice to discuss the problem with Sherman. 

Engineer: Oh, it's not a problem at all, Principal Purdy. Mr. Peabody fully expected this.

Principal Purdy: He did?

Engineer: Yes. And, as with all things Sherman-related, he prepared for it. Here's a curriculum that takes Sherman's advanced preparation into account but won't require you to have him skip one or more grades.

Principal Purdy: Mr. Conagher...

Engineer: Here are some pre-algebra worksheets, an advanced reading list, and a link to a website Mr. Peabody created so he can start studying Mandarin Chinese. It is, after all, the language of the future according to Mr. Peabody. Wait, Mandarin Chinese?

Principal Purdy: Mr. Conagher!

Engineer: I'm not sayin' he shouldn't study French, too, Principal Purdy. I'm sayin' have him do both.

Principal Purdy: Mr. Conagher!

Mr. Peabody: What? Not enough? Swahili? I could tell Mr. Peabody-

Principal Purdy: Sherman got into a fight today.

Engineer: Aw, shucks.

Principal Purdy: Pictures were taken for insurance purposes.

The principal gave Engineer a file of the incident. It showed a picture of a sad Penny and another picture of her arm with a bite mark by Sherman.

Edwina Grunion: He bit her. I must say, it doesn't look good for your friend, Mr. Peabody. After all, he is a dog.

Engineer: Who, may I ask, are you?

Edwina Grunion: I am Ms. Grunion from the Bureau of Child Safety and Protection. 

Principal Purdy: We're required by law to contact them whenever there's an... incident.

Engineer: From my observations, Sherman has never done anything like this before. I'm sure he must have had a reason.

Principal Purdy: Well, the girl was being a bit of a bully...

Edwina Grunion: Quiet, Purdy! It's normal for children to tease. It's not normal for them to bite. Clearly, it's because of how he's being raised. In my opinion, a dog can never be a suitable parent to a little boy.

Engineer: I must point out, Ms. Grunion, that Mr. Peabody won the right to adopt Sherman in a court of law.

Edwina Grunion: And the court can take it away from him! I'll be comin' to his home tomorrow evening to conduct an investigation. If I discover that he is, in any way, an unfit parent, I will see to it Sherman is removed from Mr. Peabody's custody. [aggressively sharpens pencil] Permanently. I hope I've made myself clear.

Engineer: Crystal.

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Sherman: I'm sorry I bit her, Mr. Conagher. I won't do it again.

Engineer: You're darn right you won't do it again. Your father would say this kind of violence is totally unacceptable. And rather uncharacteristic, given how you feel about Mr. Gandhi. I'm wonderin', what in Sam's hill provoked it?

Sherman: She called me a dog.

Engineer: Well, alrighty then. Thanks for telling me. Try and get some sleep.

Engineer patted Sherman's head and went to the doorway to turn off the lights.

Sherman: Good night, Mr. Conagher.

Engineer: Night, Sherman.

Engineer closed the room door and started walking down memory lane as he inspected Sherman's childhood photos with Mr. Peabody.