I've said on MN before that straight from teacher training college i got a job in a school that you would have thought was ideal, nice, small, village location. It was bloody hard work due to lack of discipline & leadership and had drug problems and teen pgs, teen crime etc just like any other. The only major issue we did not have was racial issues because of the area being almost 100% white.
I was daft not thinking it odd that the interviews were held on a day when Y11 had left/finished all exams, Y10 were on work experience, y7,8,9 were on "activities week". Thats right, not a kid in the place. looked serene. was a hell hole. As a 5 ft 3 woman, you would be intimidated walkng past a gang of unruly teenagers probably, and here was i charged with trying to teach them science using bunsen burners and chemicals!it did not help that at the same time as me they appointed a humanities teacher who lasted 3 dys, and then had a string of supply teachers lasting a day, a week....the new sport was which class can get rid of the most teachers!
when people now ask me will I go back to teaching once youngest Dc is at school, I shudder, laugh and say NOT IN A MILLION YEARS would I go back to a secondary school.
As many have said, it takes a special type of person to teach, but as anywhere its the one or two bad apples that get the rest a bad name.