Sounds familiar...
The first head coach I assisted back in the 1970s (when EVERYONE had longer hair), used to tell our kids "If I have to give you a haircut with tape scissors, it will take three barbers to fix it for you!" Most of the kids got the hint, although at the Sectional tournament one year, five of our 12 kids were told to trim. But they were spared Coach's wrath; fortunatly, one of our wrestler's dads was a barber. He had to use the tape scissors, but at least it didn't look like an angry coach did it!