Three vampires walk into a bar and sit down at a table. The waitress comes over and asks the first vampire what he would like. The first vampire responds, I vould like some blood.

The waitress turns to the second vampire and asks what he would like. The vampire responds, I vould like some blood.

The waitress turns to the third vampire and asks what he would like. The vampire responds, I vould like some plasma.

The waitress looks up and says, Let me see if I have this order correct. You want two bloods and a blood light?