Set the ground rules from the start and don't be afraid to fire those that are incapable of following them. There are tons of lawn people hacking up lawns with rotaries and string. Not so many using reels and counter rotating trimming blades. As I said before, there is a need for people who speak English, were born in America, and use reel mowers/bladed edgers/bladed trimmers in Hawaii. I do not need what I frequently see: rotary mower, string trimmer, surfboard, and cooler full of beer.