Retail work is one of the most demanding jobs in the customer service industry, and it doesn't take a genius to fathom why. Employees have to deal with daily Karens, a variety of other rude customers that don't quite fit the 'Karen category', lazy managers, and daft coworkers. OP was working a retail job in the paint department when a rude, condescending customer marched in, demanding a color match from a random home depot sign that was bolted into a metal counter. OP explained to the customer…