A lamb vindaloo is lying quietly in a stomach. All of a sudden something cold and wet lands on top of it.
"Hey! Who the heck are you?" says the vindaloo.
"I'm a double vodka," says the newcomer. "Dave just paid for me."
A few minutes later another downpour arrives.
"And who the heck are you?" says the vindaloo.
"I'm a double vodka," says the latest newcomer. "Dave just got another round in."
This goes on for a while until the tenth double vodka gushes in and says Dave just bought it.
"You guys have made me curious," says the vindaloo.