If it's Saturday, the people who come the track must see what kind of race will be held on Sunday. If it's 1/10 nitro, all the people who not drove this kind of car must give a chance to the people who's drove this kind of car . Hell....I often drive 1/8 on-road too, even when Sunday there's gonna be another type of class, I'm usually give those people who want to race tomorrow a little slack!!! I only start up my 1/8 when the track is completely clear. And when those guys want to practice again, I pull my 1/8 to the pit. A simple as that......So next time you see a guy put an attitude like Mr.X case, That guy is simply an A@$*&%e!!!!!