3 Vampires
There are these 3 vampires. The first vampire walks into a bar and says, "Bartender, give me a shot of blood." The bartender gives him the shot of blood, the vampire drinks it, and leaves.
The second vampire walks into the bar and says, "Bartender, give me a shot of blood." The bartender gives him the shot of blood, the vampire drinks it, and leaves.
The third vampire walks into a bar and says, "Bartender, give me a shot of water."
The bartender says, "Why do you want a shot of water?"
The vampire pulls out a dirty tampon and says, "Tea time."