The warning you give somebody, when you see them walking into the same bathroom you've just come from, immediately after taking a nasty shit. Ten minutes is the alloted time it usually takes for a bathroom to air out, before it becomes usable for someone else.
"Man, that fucking stinks! Would it have killed you to have given me a ten minute warning, first?"
When a completely inept person, sends an equally inept person (or gopher), to do their own shopping. Often, the gopher can be observed standing in the middle of the store, yapping on a cell phone with the person who subsequently sent them. Screaming out a variety of sizes, colours, and prices.
"That customer doesn't seem to know what she wants."
Used in retail, to describe a customer who insists on handling everything, but purchasing nothing. Most often they are white men. Middle aged to early seniors, married, heavyset, with thick glasses. Can easily be spotted, because they inspect the price tag, while holding it three inches from their face.
"Don't waste your time helping 'quality control', when there are serious buyers elsewhere in the shop."