I only got stuck on a wave line if someone didn't show up or left early, I hated it mostly cause these were the boards I had to assemble along with 1 other person on the line, they had all these fixtures to hold parts in place and they got optically inspected and if some of the fixtures were darker than others it would be enough to trigger the camera and stop the line, when they would get behind on testing and final inspection I would get stuck standing like a statue and putting all of them blade fuses in and then testing them before bolting them into a clam shell. Every 8 hours they would shut the line down and do full disassembly and clean up of the wave. It def wasn't something I liked doing and I have nothing but respect for the regulars who worked on them boards day after day for weeks at a time.