Plenty, I went to some terrible schools in my younger years and don't worry, i've heard it all before "You should of just walked away." and "Ignore it and be the bigger man." and the people who say those things were never in these situations. You walk away from these people and you are instantly labelled a coward and are bullied the rest of the way through school, believe me when I say i've tried and i've been there, call fighting stupid all you want but when it's to secure your future in a place you're trapped for 5-6 years of your teenage life, it's necessary.
I ignored bullies at first but like I said, I was labelled a coward and a pushover that could be easily picked on and to be honest I was at that point, I didn't want to fight these people because honestly I didn't see the point until it clicked. About half way through my first year in high school I started to retaliate, obviously I'd never fought in my life so I wasn't very good at it and it took me about 2 years to get them to see I wasn't worth the trouble anymore. I could of avoided all the bullying if I would of stuck up for myself in the first place.
Just because something seems stupid or wrong, doesn't mean it's not necessary.
Also, sorry for the life story.