I'll be just as bad as them to show how annoying they are. And I am stating truth, you ARE going to get booed off for playing Periphery.
It's not a good idea to be just as much of a richard as somebody else just to show them how they are. If you really want to show them how they're wrong, be the better person.
But I mean, if your room is dedicated to rock/metal only, then you have every right to boot people who play something else.
Btw, I'm jammin' some Quicksilver Messenger Service right now.