I never said you couldn’t, but consider this:
Eff up just one wheel, then ASS will have to pay for a new one (yes I know it’d prolly be covered under their insurance) and possibly take things out on you. As a friend of yours, I’d hate to have any consequences from a mistake being taken out on another friend. I’d rather have some dude I don’t know get screwed and I wouldn’t feel any remorse.