Seen that quite a few times myself. We have a company around here who has quite the reputation of being a go-to company with oddities. Drop a car off a lift? He's the guy to call. (A buddy of mine did this. Twice.) He's also a penny pincher. Wasn't unusual to see one of his trucks being pulled by another.
Since his boy took over, though, the equipment has been upgraded. His boy just got flat out tired of working on the trucks constantly to keep 'em on the road.