The more you murder, the less you have to trim in the future. Honestly, the worst offenders usually just don't know better. They are new and are put on a trimmer by someone who's too lazy to do it themselves. The person in charge doesn't give a crap how well it's done, as long as it's not done by them. Not everyone who sucks at trimming is a hack. By my standards, and the ones I was trained to meet, I sucked at it for months. The thing is, there was standards. A hack wouldn't have cut it then.