Man goes into a bar...

A very thirsty man goes into a bar.
As he waits to get the bartender's attention, a regular sitting next to him calls out, "I'll have another waterloo."
The bartender gives the regular a tall ice cold drink and asks the newcomer what he would like. The thirsty man points to the man next to him and says, "I guess I'll have what he's having, a waterloo."
So the bartender brings the newcomer a tall ice cold drink. The man takes a long deep drink and calls out, "HEY! This isn't any good. It tastes just like water!"
The regular bar patron sitting next to him says, "It is water. That's all I drink," He turns to the bartender and says, "Right Lou?"