I used to give the customer the choice, but because of Liability concerns that has changed. As stated earlier in this thread, when a heavy component (engine, upright, counterweight) has be be removed, I take the unit to the shop. There are far too many people here in the US that don't follow rules & I've had the misfortune of having someone almost get hurt by being somewhere they shouldn't.

I find that when I'm on a job in the field, there always seems to be someone who wants to look over my shoulder- which I usually don't mind, but when I have an engine or such up in the air the last thing I need is to have someone hanging around distracting me from the job at hand.