Three men enter a bar to buy beer. They fall short of a few bucks and the bartender notices them rummaging for money.
He tells them, walk into my basement and sit in it for 4 hours in the night. If you manage to do so, ill give you free beer for life!
Excited about free beer, one man walks into the basement, sits for an hour but he cannot stand the darkness and the innumerable flies and gives up.
The second man, a little more chivalrous, goes in, ties a cloth around his orifices but he cannot stand the sound for more than two hours. “He comes out and says, two more minutes and I would have choked to death”.
The last man, the weakest of them all enters the basement. Comes out after four and half hours.
“Wow, how did you manage that?”
“Simple, I took a shit in the far corner of the room and sat in the other corner. No flies, no suffocation”
Earned his free beer, didn't he?