We have this little brain at youth. Every now and again I'll pick it up when I'm with my sister and say, "I've found my brain." This one time other kids were upstairs and I said that. Then proceeded to throw the brain at my sister. At one point this kid picked it up, walked up to me, put the brain on my head, and said something like, "Here's your brain. Use it."

So I bust out laughing.

Why?

He spit in my eye.

And I found that funny, apparently.

He did not. He walked downstairs looking quite embarrassed but I was laughing so hard I really didn't care. Now why did I find that funny?