I recently watched Jim Jefferies stand up comedy show called "Alcoholocaust" (awesome, hilarious, one of the funniest comedians, available on YouTube). He was talking about Australian brothels, where punters have to go through the "light test", basically you put your willy under a light and magnifying glass to check for any abnormalities, if you pass, you can see a hooker, if you fail, no punt!
It would only be fair if punters can have a "smell test", if she passes, punt on, if she fails, we walk and she must pay us our transport costs for wasting our time!