Here's a Norm Macdonald joke

A guys wife was in a coma and he was devastated, he thought they might have to pull the plug cuz she wasn't regaining consciousness, the doctor came into the room and said " there's one last thing we might try that could work but it's really unorthodox.. we leave the room and you have oral sex with her, the stimulation might wake her up", the husband says sure I'll give it a try and everyone leaves the room, 5 minutes later guy comes out to talk to the doctor and he says doc, every time I start, she gags .