The Art of Packing

Brad was frequently hanging out at the local beach, but he just couldn’t make it with any of the girls. One day he headed over to the lifeguard tower to see if the lifeguard had any advice for him.
“Dude, it’s obvious,” says the lifeguard, “you’re wearing them baggy old swimming trunks that make you look like an old geezer. You need to grab yourself a pair of Spandex Speedos  about two sizes too small and drop a fist-sized potato inside ’em. I’m telling you man… You’ll have all the babes you want!”
The following weekend, Brad hits the beach with his spanking new Speedos. It wasn’t long before he realized something wasn’t right. Everybody on the beach was totally disgusted as he walked by. They covered their faces, turned away, and laughed.
Brad went back to the lifeguard again and asked, “What happened? Why is everyone so disgusted?”
“Oh Jeezus!!” exclaimed the lifeguard “The potato goes in front!!”