A pharmacist goes out for lunch and when he comes back he finds a man sitting on the floor twitching. He asks his assistant, "What exactly is going on?"
His assistant replies, "This man came in looking for cough syrup."
The pharmacist replies, "Well, what'd you give him?"
The assistant replies, "Laxatives." The pharmacist asks why so and the assistant replies, "He doesn't want to cough anymore…"