Withdraw maybe, missing it never, I rarely have the issue, but I really feel bad for dps and their long queues, so many times I hear people say, that they just stepped away for a second, maybe to grab a fresh drink or go to the bathroom to see they lost their super long queue. And for them to have to wait 15 minutes to requeue on top of that, not fair, the tanks/heals don't miss out by having an afk dps, a new one pops back in pretty fast.