Everyone I talk to about refrigeration. It's not cooling right, must be low on freon. I'm so totally tired of hearing that. Well, maybe it's time to surrender to the urban legend, instead of trying to educate the world. From now on, everyone gets gages and a couple ounces (at least) of freon. If they're buying, I'm selling.
I might also fix the problem while I'm there, but quietly so.