My cousin's an electrician and I used to help him out a lot, so naturally to put myself through college I got a job in the electrical department of the local Home Despot. As a result I am personally responsible for saving the lives of countless idiots.
Every Christmas we'd get at least 20 people a day who had wrapped an outside tree in Xmas lights, but had done it backwards so the plug was up at the top of the tree. They'd come in wanting a male-to-male plug adapter, which of course no one would sell since it would enable you to easily shock the crap out of yourself. They'd always get furious with me for not having it.
- Because I told a (east) Indian fellow that the transformer for his low voltage lighting (not purchased from us) was bad, I was branded a racist, and a letter was sent to corporate HQ demanding my firing. Of course, the corporate guys came down, talked to me, and wound up laughing about it and buying me lunch
- A man came in insisting he had bought the Tool Shop wire stripper from me, it was busted, and I had to give him a new one. I told him we don't sell Tool Shop. He of course called me a liar and started yelling at me on the sales floor. I pointed out that Tool Shop is the Menards house brand, to which he explained that we must have special ordered it, from our chief competitor, for him.
Then there was Best Buy, years ago, where a customer asked me if we matched advertised prices. I said yes, so he pulled out a Best Buy ad from a year ago and told me to match the price on the advertised printer.
Uhh. No.