Don't worry. You're small and weak that'll make you less of a target.
— Gobber (Craig Ferguson)
6 seconds sound clip from the How to Train Your Dragon movie soundboard.
You can hear this line at 00:17:43 in the Blu-ray version of the movie.
Quote context
[...]
- Hiccup already killed a Night Fury, so does that disqualify him, or...?
- Can I transfer to the class with the cool Vikings?
- Don't worry. You're small and weak that'll make you less of a target.
- They'll see you as sick or insane and go after the more Viking-like teens instead.
- Behind these doors are just a few of the many species you will learn to fight!
[...]