it's my life

This guy walks into a pub with a gremlin sitting on his shoulder. He sits at the bar and
orders a pint and a half of lager.
The gremlin downs his half-pint, runs long the bar, and dips his head in a bloke’s beer and
goes, “Brrr!”
The guy orders another pint and a half. The gremlin repeats the performance. The bloke
grabs the gremlin by the neck, shakes him up a bit, and says,
“Listen, if you ever do that again I'll cut your balls off!”
The gremlin says, “I ain't got none!”
“Well, I'll cut off your prick!”
“I haven’t got one of them, neither,” says the gremlin.
“Well, how do you pee?”
The gremlin smiles and says, “Brrr!”