The owner of a drugstore arrives at work to find a man leaning heavily against a wall. The owner goes inside and asks his clerk what's up.
"He wanted something for his cough, but I couldn^t find the cough syrup," the clerk explains. "So I gave him a laxative and told him to take it all at once."
"Laxatives won't cure a cough, you idiot," the owner shouts angrily.
"Sure it will," the clerk says, pointing at the man leaning on the wall. "Look at him. He's afraid to cough."