We had a new neighbor who asked to borrow our brand new shiny red wheelbarrow. I had been putting an old blanket in the bottom to keep it nice, but DH loaned it out. The neighbor used it to clear concrete and other junk from his yard and dump it illegally in the conservation area across the street, thus making us accessories to a misdemeanor. He also dumped his wasted food there, in that lovely previously pristine spot. Plus, the wheelbarrow was returned all dented and with the paint scratched off. It just wasn't worth it to me to do a favor for this neighbor again. He kept asking, though, and got quite insistent.