Strange Loops

A Viking, a Cowboy, an Assassin, and a Scientist walk into a bar. The Bartender says, "Welcome to Strange Loops. You boys must be lost." "We've lost track of time," the Cowboy replies. The Bartender laughs and then says, "Or maybe time has lost track of you.""Can you help us," asks the Scientist."If I could help you, I wouldn't be lost here either," the Bartender says.They laugh.