I also know a JW that has a auto repair shop. He has had to fix more then one pioneer or single sisters car for free because they didn't have any money to pay for the needed repairs. Another JW family had him repair thier car but when it came time to pay they delayed because they had spent the money to send the wife to Hawaii so she could be at the regional convention with her family. They finally paid but it took awhile.
Ah, the covetous, freeloading JW economy. Giving a freebie would work if the group is overall well educated and employed. Having a reputation for giving freebies to a group of underemployed and undereducated leeches who've come to expect it will put you in bankruptcy.
Also see: Religious discrimination.