An Avon lady was along in an elevator when she suddenly had to fart. 

She promptly reached into her bag and sprayed the air with her deodorizer.

Two floors later a gentleman got onto the elevator. He began to sniff.

The Avon lady asked, "Do you smell something?"

"Why, yes, I do," he replied.

"What does it smell like?"

"Hmmm, I'm not sure, but it kind of smells like someone shit in a pine tree."