lol, oh yes, i totally know what you mean! gym teachers are weird like that because of all the liability felgercarb if you get hurt (which is why almost no high schools have a gymnastics team)...i remember in gym class i would always do flips and stuff around the gym and playground and stuff and they would get so mad
yeh, vault was alway my favorite as well...you should go to a real gymnastics place and try some things just for fun, i know some places have something called "open gym" where anyone can go and just play around...lol