That was unexpected
Going into a dark, narrow tunnel is always a bit unnerving, even if you’ve done it before. You never know what you might find there, and so you prepare yourself for the worst. However, I bet this guy would’ve never imagined “the worst” might be an angry bear.
I don’t want to know how this ended and how he got out of there, since I’m sure it wasn’t pretty. What does one do in such a situation? Once you’ve encountered the bear, it probably means it’s too late to go back, and clearly you can’t move forward. Whatever they ended up doing, at least they got a crazy story to share.