Generally, I don't tell people what to do with their kids. Hey, they're your little delinquents, but I'll just offer a bit of advice, even though you parents say I couldn't possibly know what it's like because I don't have any.
If anything, teach them respect for authority and their elders. Your 17 year old gets in my face because he's been walking all over you for most of his life, I'm gonna drop him like a bad fucking habit. You give me any shit about it, I'm gonna drop you too.
Just to make this clear. You are not your kids' friend. You are their parent. Teach them that the world does not revolve around them. Because the first time they meet up with an asshole like me, they are gonna have a very rude awakening. That is all.