Does anyone know the answer to this joke?

Question

It was on some tv show, right before the break. I was channel surfing during the commercials and missed the beginning when they said the answer. It goes...

"A man walks into a bar, sits down and asks for a glass of water. The bartender pulls out a gun and points it at the man's forehead. the man says 'thank you' and leaves. why?"

And it isn't the panda one...

Answer 1

The man had urinating problems,when the bartender got the gun, the man finally got to pee. The glass of water was to help his bladder.  

Answer 2

i donno maybe because people drink alcohol in a bar not water??

Answer 3

He had the hiccups and wanted to drink water to get rid of them, but the bartender decides to try and scare him instead, and it works.

Answer 4

Lol idk

Answer 5

A toy, water shedding gun?!

Answer 6

maybe it was a water gun ha !

i find this joke funny

just because you dont no the end of the joke

so u kinda have created a new joke :L

Answer 7

ah he had a hik up cause see he wanted a glass of water to cure his hic up, but the gun scared him so then the hic up is gone

Answer 8

cause the mans wife forced him to commit suicide

Answer 9

when the gun was pointed at him the man became very nervous and started sweating water until the sweat filled up a whole glass