Bit of a threadjack but... When I was 14, I started working for this old Czech farmer who happened to be the cheapest tightwad bastard I think I ever met in my life. I liked him, but most of his stuff was held together with duct tape and bailing wire. He had a nice house and yard fenced off from the surrounding pastures, probably about an acre and a half or thereabouts which I would mow when we weren't tied up working in his rice fields. Which was OK when the John Deere riding mower was working. Well wouldn't you know, something went wrong with the riding mower, and being the cheap bastard that he was he didn't want to haul it the 20 miles to El Campo to get it fixed. So, guess who had to mow the whole fucking thing with a push mower. To add insult to injury his manner of saying certain things was lacking. He'd say "Well we don't got any field work tomorrow, I think I'll let you mow the yard." Gee thanks I feel so privileged.
Well after I think the 3rd time I mowed the fucking monstrosity with the push mower, I realized "hey this motherfucker is never going to get pay to get his riding mower fixed, as long as I'm push mowing." So while I was in a part of the yard he couldn't see down by the little creek, I opened up the oil fill and carefully put a few or maybe more than a few tablespoons of nice black dirt in there. About 10 minutes later - "Hey boss, the push mower shit the bed!"
The next week he had the riding mower fixed. Because it was cheaper than buying a new push mower.
Thanks for listening to my Ted talk.