A man in a bar, after several drinks, began bragging that he could identify any type of wood by its smell only. The patrons of the bar decided to test him. The man was blindfolded and presented with several pieces of wood.
First they tried maple. He smelled it and said, "That's maple."
They then tried ebony; he again smelled it and named the wood correctly. He did this with ever piece of wood they brought before him.
The bartender then got an idea to trick him. And they took one of the waitresses and put her crotch up to his nose. He sniffed for a while.
"Boy," he said "this is difficult, flip that board over and let me smell the other side."
So they took they waitress and put her ass near his nose.
He took a big whiff, started to smile and said, "You guy can't fool me! That is the shit house door from a tuna boat!"