A Chemist walks into his shop to find a man leaning against the wall.
“What’s wrong with him?†he asks his assistant.
“He came in for some cough syrup,†the assistant explains,
“but I couldn’t find any so I sold him a bottle of laxative instead.â€
‘What!’ the Chemist says, horrified.
“You can’t treat a cough with laxativeâ€
“Of course you can†the assistant declares.
“Just look at him – he’s far too scared to cough!â€