I think I can top that:
I worked at a porno shop when I was 17 (yes, very illegal as I was well aware). I had applied to work at the owners' non-porno other video store, but they had called me in for an interview and hired me for their other store, which I'd never been to, without bothering to tell me I'd be renting out porn. My boss was an albino who never came out of the back room and he had his mail order Russian bride, Olga, training me. On my second day, there was a really old blind guy who came in, aparently he rented three videos every week, and Olga informed me in broken English that I had to pick out the porno for him, since of course he couldn't see the cases and therefore couldn't tell if he'd rented the videos before or not. I can still remember two of the three titles I picked out for him: "Double Penitration Virgins," and "Fuck Me" (as apposed to "Fuck Me II," which I remember thinking I would have him rent the next week). As he was paying the blind guy said "I'm very sorry, I'm a bad person." and I said "Umm...no...uh...no you're not." I quit on my next shift, not because I didn't like the job - it was a facinating petri dish of humanity, but because my other job at Wal-Mart was offering me more hours and Olga wasn't willing to schedule around my other job. She screamed at me that I couldn't quit now because she and the owner were going on vacation the next week and she didn't have time to train someone else. I then just turned and walked out of the store in the middle of my shift as she continued to yell. I read in the paper a week later that the two of them had skipped town, both video shops had been shut down, and that they owed major money to creditors. I always wonder what would have happened if I had stayed on and been left holding the bag in a adult video store gone belly up.
When it comes to condoms, when I taught sex-ed I used Lifestyles condoms on a rubber dildo to teach horny teens how to put them on right, and the standard is that they are the preferred brand of gay men because they're so tough. Without going into too much personal detail, I don't personally like them and prefer Trojans.