Flies In The Beer

An Englishman, a Scotsman, and an Irishman are seated side-by-side at a bar.  Each has a mug of beer in front of him.

Simultaneously, three flies land in the beers, one in each mug.

The Englishman looks at his beer, pushes it away and asks the bartender for a new one.

The Scotsman reaches his fingers into the beer, picks up the fly, throws it to the floor and drinks his beer.

The Irishman reaches into the beer, picks up the fly, holds it over the glass and yells, “Spit it out, you bastard!  Spit it out!”