This is an old joke maby you have heard but maby you havn't

A guy walks into a bar and asked the bartender to serve him 3 glasses of beer. The man drinks the first beer and says "Happy Birthday". He drinks the second beer and says "Happy Birthday". Finally he drinks the third beer and says "Happy Birthday". The man leaves the bar without saying anything else.

Exactly a year later on the same day the man returns to the bar and asks the bartender for 3 beers. he drinks the first one and says "Happy Birthday". he drinks the second and says "Happy Birthday". He drinks the third and says "Happy Birthday".

At this point the bartender is really curious so he asks the man why he orders three beers and says happy birthday after each one he drinks. The man informs the bartender that he has two friends that live in other countries that share the same birthday as his. So every year on their birthdays they all go to a bar and drink a beer for each other. The bartender doesn't know what to say so he just lets the man leave without anymore questions.

A year later again on the same day the man returns. This time he orders just two beers. He drinks the first one and says "Happy Birthday". He drinks the second and says "Happy Birthday". Before he could get up to leave the bartender asks him if one of his friends died because he only ordered two. The man says "Oh heck no, I quit drinking"

lol