157. And now the trouble starts!

 A guy walks into a bar and says urgently to the bartender, "Give me a beer before trouble starts!"

He drinks his beer and orders another, again saying, "Give me a beer before trouble starts!"

The bartender is confused but lets it go for another two beers, when he finally asks, "Hey man, when are you gonna pay for those beers?"

The guy answers, "And now the trouble starts!