Doctors and the Corpse

Three doctors go into a room to get rid of a dead guy's body. They notice when they walk over that he has a boner. The first doctor decides, "Why not fuck him? He still has a boner left in him." The second says, "Well, he's dead, and I am a virgin." The third one says, "I can't, I'm on my period," and then says, "Okay, why not? He's already dead. It's not like he doesn't smell bad." After all that, they go to walk out, and the guy pops up and says, "Thanks for saving my life, pumping blood back into my body..."