Male Pharmacist, please

A man went into a pharmacy and asked to talk to a male pharmacist.

The woman he was talking to said that she was the pharmacist and that she and her sister owned the store, so there were no males employed there. She then asked if there was something she could help the gentleman with.

The man said "this is embarrassing for me, but I have a permanent erection which causes me a lot of problems and severe embarrassment. I was wondering what you could give me for it?"

The pharmacist said "Just a minute, I'll go talk to my sister."

When she returned, she said, "the best we can do is 1/3 ownership in the store and $3000 a month in living expenses."