Four hours?

I just saw an ad for yet another erectile dysfunction pill, Levitra, and one of the cautionary phrases the Lawyer Voice said was: "For erections that last more than four hours, seek medical attention." That single sentence has convinced me that I will never, ever take one of those drugs in my life, even if it meant I would never have sex again. I just couldn't handle calling the ambulance, or even talking to the doctor:

Doctor: What seems to be the problem?
Me: I can't say.
Doctor: I beg pardon?
Me: I really...I just can't say.
Doctor: Uh, very well. Could you please stand up and follow me into the doctor's office?
Me: Uh...no thanks.
Doctor: I see.

After a "medical emergency" like that, I'd need to at least switch doctors.