Joe was in the corner bar having a few when his friend Phil stopped in and joined him. It didn't take long for Phil to notice a string hanging out of the back of Joe's shirt collar that his friend kept tugging on.

Finally Phil couldn't contain his curiousity, and asked, "What`s that string for?"

"Two weeks ago I had a date with that dish, Linda," Joe explained, "and when I got her into the sack, would you believe I couldn't perform? Made me so mad that I tied this string to my dick, and every time I think of how it let me down, I pull the string and make it kiss my ass."