In this video Justin rants about one of his particular dislikes and makes a valid health and safety point. He explains that the tape discarded from leads, if not removed from the stage, will become an issue later when it gets stuck to the soles of your footwear.
Justin learnt this the hard way - slipping on a truck ramp and breaking his nose on a flight case.

Tag: 
health and safety, manners, loading truck, ramp, safety shoes, tape, etiquette, stagecraft, dangers on stage, accidents tidy stage, roadie accidents, sound engineer H&S, justin grealy, stage craft