I don’t know why, but the thought of that makes me titter. I’ve never seen it done, but heard of it many times. I have a mental image of some bloke answering the door, seeing the burning parcel and stamping it out in his slippers.A lot better than the burning bags of dog mess we used to leave on doorsteps.
Meanwhile, hiding behind a car are three kids trying to not to give away their position, but still mount the OP. More amusing is to then consider that these three kids might well be future captains of industry, medical professionals, military, engineers etc. I don’t see future social workers or hairdressers doing that