A Farmer Buys A Condom
The pharmacist replied, "Oh sir, you must mean that you want the condoms with SPERMICIDE, not pesticide. They're in aisle 4".
"No, no, I want me them thar condoms with PESTICIDE on it", growled the farmer.
"Sir," said the pharmacist, exasperated from explaining, "PESTICIDE is for killing insects, SPERMICIDE is for killing sperm. I'm sure that you mean spermicide instead of pesticide".
"Listen here, " argued the farmer, "I want condoms with PESTICIDE on it! My wife's got a bug up her arse, and I aim to kill it".