A Man Was Feeling Frisky, So He Went To The Local Brothel.

When he got there he saw a prostitute that was only $5 he thought what the hell it's only 5 bucks, so he goes in the room, has sex with the prostitute, and heads back home.

The next day he wakes up and realizes he now has crabs. Furious, he goes back to the brothel and finds the prostitute and yells "hey! You gave me crabs!" To which the prostitute responds "well yeah what were you expecting for $5? Lobster?"