Roger desperate for cash walks past a shop one day and see’s an ad for a job.

The ad reads WANTED: A male with a good sense of smell, job should last up to two hours $500 cash.

Roger thinks this is great! So off he goes to the address on the ad, at the door he gets greeted by a small effeminate looking man, the man looks at him and says "Oh come in, the first thing is I want you to sit down and go through a test to see how good your sense of smell is."

Roger agrees and sits down.

What I'll do is put a tissue up to your face and you have to tell me what’s on it.

Roger replies, "ok seems easy enough."

The first tissue he puts to his face Roger says, "Well that is vinegar."

"Well done," says the man.  The next tissue goes to his face and Roger says, "well that’s glue."

"Oh God!" replies the man, "You're really good at this aren’t you?"

Roger smiles feeling very pleased with himself, the next tissue goes up to the his face and he passes out for an hour he wakes up confused and sore.

When his head clears, he says "What was on that tissue?"

The man replies, "chloroform really hurts your bum doesn’t it?"