Bad Medicine

A man is lying in bed in a hospital after a serious illness. His wife was there to visit, when she went to have a word with the doctor. They returned nearly an hour later. After checking the husband's vital signs, the doctor was called away to another patient.

"Where did you two go for such a long time?" The man asked his wife suspiciously.

"I felt a cold coming on, and the doctor said that he had something for it in the medicine cabinet." His wife replied.

The man frowned. "You'd better go find him and tell him he forgot to zip his medicine cabinet back up."