I don't think my school ever had filtering, I know people always made porn sites as the default site in programming class (or web design, I forget).
Bastards, I almost got busted because I didn't know someone messed with netscape.

But recently my brother told me that at his (middle) school he couldn't get into gun sites for research on military equipment hake: fucking peaceniks

I swear one of these days the pacifists in charge of the schools are going to get what they want, no one will want to fight and we'll get invaded