On bullies, kids spend a lot of time in school, where they can't defend themselves, it's against school policy. On the other hand, I work in a jail, bullies are my living. I try to coach my kids classes to be very aggressive about eye contact. Without going into a lot of detail, I've learned bullies are big on selecting victims they can stare down, but are easy to stare down in turn. We call it "cop eyes" at work. It is great for sparring, and easy to learn. You can even turn it into a game or two.
1. Walk around and make eye contact.Make the kids look you in the eyes when they are drilling and you are at the head of the class.
2. make the kids make eye contact with their partner, stare them down, while practicing self defense.
3. Line them up in two rows, facing each other. Make them stare each other down, without blinking. Give them a chance, do it several times, till they all win. Kids love this drill as a break from routine.
Incidentally, eye contact is really important, I've seen magicians, mentalist, and carnie workers do amazing things with eye contact. Sneaking an axe kick onto the top of someones head is nothing compared to forcing a card on someone, sneaking it out of the deck and slipping it into your pocket, while you hold their eye contact.
joe yang, the three edged sword of truth
"Not going to be fooled by you again Joe Yang's right you are evil and self-serving." Haiyomi
"Give my regards to joe yang. very intelligent man." Sojobow