I've made more than my fair share. And of course they garner smart ass remarks from the wal mart shoppers in back. Two times, they were really insulting, and those two times I responded in kind. One reply was "You get what you pay for, now you'll remember to tip next time!", then the other "I'd like to see you try it!". I used to try to grease 'em on, anymore though I couldn't care less as long as nothing is dangling by only a wire afterwards.