They go to A6 cycles, Snottyotter tells them how much their cheapest new bikes are. Offers to show them the second-hand ones, but they shun them, and are directed to Tesco/Halfords/Argos.
They then return a few months later with a wreck which was never properly assembled, pleading poverty and wanting free repairs, or they come back a week later wanting their mail-order/supermarket-box bike properly assembled and are astounded by how much a mechanic's time costs to do that kind of check and setup.
Have you been watching me work?