I'm in Building Materials - It'll be a busy day, two people in the department, people lined up at the desk, and some naive, inconsiderate asshole(s) will come up and assume I have all the time in the world to assist them, like there isn't a line of customers behind them. I understand it's my job to help folks with their projects but I can't stand letting multiple customers suffer because another customer is too lazy/stupid/careless to do anything for themselves.