In most of my cases that I've been blamed, I was also able to turn it right back at the DPS or Tank. You should be able to pay attention to a lot of things seeing as you aren't staring at a monsters face or ass the entire fight.

They call you out for being 'bad,' you call them right out again. You don't want to stoop to their level? Move on and enjoy life. You have no reason to care about their thoughts if you aren't at fault.