I would say yes to this survey. Depending on the wording, but the way it's described in the title seems logical for a yes. 

> Could you kill a Grizzly Bear in hand-to-hand combat?

Yeah, I *could*. I've heard of it happening before, and I know the general idea is that they probably can't swallow you whole. So you start with your arm a try and stuff your whole ass into their throat. It's possible, thus the answer has to be yes.

> Would you kill a Grizzly Bear in hand-to-hand combat?

Almost certainly not. I would die almost immediately.