D - I dare Toothless to hang around Fishlegs all day, acting as if Fishlegs were Hiccup.

A - Challenge excepted - (Translated of course.)

Result - Below

Hiccup: *Wakes up to his father calling him*

Stoick: Hiccup! We're leaving in an hour! Are you ready?

Hiccup: Yeah, I'll be right down! *Turns to Toothless* Toothless, I am visiting a neighboring tribe with my father to renew the peace negotiations. You have to stay here, okay bud? I'll be back at the end of the day.

Toothless: *Is sad for a minute, until he remembers his dare.*

Hiccup: See you later bud!

*Later that day, Toothless searches for Fishlegs until he finds him in the Academy*

Toothless: *Whines at Fishlegs until he pays attention to him*

Fishlegs: Hi Toothless, sorry I can't play with you. I am going to spend time with Meatlug.

Toothless: *Realizes that he needs to get Meatlug out of the way. Thinks for a minute, then runs to Fishlegs house, grabs one of his shirts, then drags it on the ground for miles so it will leave a scent*

*Meatlug, while looking for Fishlegs, starts to follow the scent of the shirt into the forest, and the opposite way of Fishlegs*

Toothless: *Runs back to Fishlegs, after Fishlegs can't find Meatlug*

Fishlegs: Okay, fine, I will play with you. Meatlug is probably sulking somewhere because I took so long.

*Long after they're finished playing catch the sheep, Toothless follows Fishlegs everywhere, while Fishlegs starts to get irritated*

Fishlegs: Toothless! Why are you following me?

Toothless: *Just looks up at him flicks his ears*

Fishlegs: I suppose next you'll be wanting me to catch your supper for you!

Toothless: *Starts grinning*

Fishlegs: Oh no...oh, why did I bring that up?

*Hours later, after Fishlegs has caught Toothless some fish, and Toothless has scared off every villager that dares to approach Fishlegs, they are not very happy with each other*

Fishlegs: Ugh, Toothless! Please, go, home!

Toothless: *Shakes his head, then points with his head towards the sun, which by now is setting*

Fishlegs: I know that it's sunset! But you will have to wait until Hiccup gets home before you go on your nightly flight!

Toothless: *Suddenly comes up with an idea, and starts smiling evilly at Fishlegs*

Fishlegs: *Starts backing away quickly as he sees Toothless's grin* OH NO! I am NOT, flying with you!

Toothless: *Runs forward and shoves his head under Fishlegs, causing him to fall into Toothless's back. Then he runs towards a cliff edge, and jumps right off*

Fishlegs: AAAAAAHHHHHHH!!!!!! OH THOR! OH THOR! Tooottthhhllleeeesss!!! *Quickly puts his foot into the tail controller*

Toothles: *Races at top speed around all of Berk twice, until he sees Hiccup's boat come in, then he lands right in front of their house*

Fishlegs: *Makes a squeak, and then, rolls/falls off of Toothless*

Hiccup: Toothless! I'm back bud!

Toothless: *Runs up to Hiccup, licks his face, and then runs inside their house*

Hiccup: *Looks over at Fishlegs* Are, you, okay Fishlegs? Why are you lying on the ground?

*Just then, Meatlug comes running up, after finally realizing that the scent trail was fake*

Fishlegs: Oh Meatlug! *Hugs her* You're the best dragon ever! Nice and slow, just how I like it! *Flies off on Meatlugs*

Hiccup: *Scratches his head confusedly then mumbles* So weird! How come all this stuff has been happening lately...Wait, Toothless gets questions from fans. I wonder if he gets dares too? TOOTHLESS! You get over here right now bud! I need to ask you something!...

Keep asking and daring!