This just brings up so many unanswered questions. Why is there a trap door in front of a desk? why was it open in the first place? does it lead to the basement? lower levels? hell? did the guy inherit any common sense to where he was going? is he okay? and why did that other dude rush forward to help him, but then close the door? hmmmm...
Since that's a bar it leads down to the kegs for the taps and other storage the guy probably wasn't hurt too badly since normally its only a six foot drop.
You are now officially a C-C-C-COMBO BREAKER!
"No I think I broke my legs"
"OK" (closes door)