Proposing to your girlfriend is a risky venture. She could say no. Riky Ash's proposal had additional risks, as he waited until he had been set on fire before popping the question. The New York Post describes his stunt:
Ash, who’s been stunting as a body double for 27 years, says he was able to stay relaxed while on fire thanks to his kung fu training and says the nerve-wracking part was making sure the surprise went off without a hitch. “This one, I’m more nervous about the actual proposal than being set on fire.”
Ash's girlfriend, Katrina Dobson, says that she didn't know he would propose at that moment. She thought that she was simply joining him for a romantic photoshoot.
-via Instapundit