I've had some of the dumbest things happen. One time (not during final assembly though), I inadvertently blew a body off my turntable, onto the floor of my garage by being too close to the model with the can of polyurethane. My paint table was also my table saw, so the model, wet with a fresh coat of urethane, plopped right down into a huge pile of sawdust. Not one of my happier moments.