I'm the current 100 shooter challenge king amongst me an the lads.
Basically, whoever can drink a shot of beer, every minute, for 100 minutes wins, or if more than one person does it, you keep going until someone gives up.
If you leave your chair/spew/fail to drink the shot and fill the glass up for the next one... your out.
Good laugh, but, same as you Greg, it's the gas that gets everyone
Also drunk a yard of ale, managed it, but was sitting trying to force a burp out for the rest of the night