It's the young salesman's first day on the job and the seasoned vet is training him. "We always try to upsell and get the customer to buy something more."

A guy comes up with a bag of grass seed, and the vet salesman says "Hey do you want a lawnmower with that? Once you get this grass goin' you're gonna want it looking its best."

The customer goes "yeah that's a great idea" and walks out with a lawnmower too.

"See how it's done?" says the vet, "Go ahead, you try."

The next guy comes up with a box of tampons, and the new salesman says "Hey do you want a lawnmower with that?"

The customer looks confused and hands over his money and quickly walks out.

The vet salesman goes "what the hell was that?"

The kid salesman replies "well he wasn't doing anything else tonight, so he might as well mow his lawn."

The version I know is something like this ...

A guy steps up to a urinal and another guy steps up to the one beside him.

The first guy goes ‘yo check it out, I just got my girlfriend’s name tattooed on my junk. Tammy, she loves it.’

The second guy says ‘oh cool I have a tattoo there too.’

The first guy checks it out and says ‘your girlfriend’s name is Waica?‘

The second guy tugs a little and the fist guy’s eyes go wide as he reads Welcome to beautiful Jamaica.