Corona vs. Budweiser vs. Coors vs. Guinness

After the Great Britain Beer Festival, in London, all the brewery presidents decided to go out for a beer.
The guy from Corona sits down and says,  “Hey Senor, I would like the world’s best beer, a Corona. ” The bartender dusts off a bottle from the shelf and gives it to him.
The guy from Budweiser says,  “I ‘d like the best beer in the world, give me  ‘The King Of Beers ‘, a Budweiser. ” The bartender gives him one.
The guy from Coors says,  “I ‘d like the only beer made with Rocky Mountain spring water, give me a Coors. ” He gets it.
The guy from Guinness sits down and says,  “Give me a Coke. ” The bartender is a little taken aback, but gives him what he ordered.
The other brewery presidents look over at him and ask  “Why aren’t you drinking a Guinness? ” and the Guinness president replies,  “Well, I figured if you guys aren ‘t drinking beer, neither would I. “