Now, a wet dragon head can't light its fire.
5 seconds sound clip from the How to Train Your Dragon movie soundboard.
You can hear this line at 00:37:13 in the Blu-ray version of the movie.
Quote context
[...]
- That's not too bad. It works.
- Whoa! Whooaa! No, no, no, no!
- Now, a wet dragon head can't light its fire.
- The Hideous Zippleback is extra tricky.
- One head breathes gas, the other head lights it. Your job is to know which is which.
- Razor-sharp serrated teeth that inject venom for pre-digestion.
- Prefers ambush attack, crushing its victims...
[...]