A doc told a man that masturbating before sex, often helped men last longer during the act.
The man decided, "What the heck, I'll try it." He spent all day thinking about where to do it. He couldn't do it in his office, the restroom was too open & an alley was too unsafe. Finally, he realized his solution. On his way home he pulled his truck over on the side of the highway. He got out & crawled underneath as if examining the truck. Satisfied with the privacy, he undid his pants & started to masturbate, he closed his eyes & thought of his lover. As he grew closer to orgasm, he felt a quick tug at his pant leg. Not wanting to lose his mental fantasy or the orgasm, he kept his eyes shut and replied, "What?" He heard , "This is the police. What in the hell are you doing?" The man replied, "I'm checking out the rear axle, it's busted." The cop says, "Well, you better check your brakes too, because your truck rolled down the hill 5 minutes ago!"