Even though at this point it's pointless to deny my fondness for the SOS Brigade, my typical advice to new members has always been "run while you can."

However, in your case, it's far too late for that advice to do any good.

I can say that if you and Stiles were to show up to a meeting in lacrosse uniforms, it might earn a day's respite from other costumes -- however, the risk of Haruhi developing an interest in the sport might be too severe.