Bloodshot

Three Vampires walk into a bar and sit down. The bartender comes over and ask them what they want to drink.

"Give me a shot of blood", says the first vampire.

"Make it a double for me", says his friend.

"Just get me a mug of hot water", says the third vampire.

The bartender gets to work and serves the vampires their drinks. Slighlty confused and curious, the bartender turns to the third vampire,

"Why did'nt you order any blood?", he inquires.

The third vampire pulls out a tampon and drops it into his mug, "I'm making tea".