That is needlessly adversarial. You should be working as a constructive teammate, within a constructive team.
Tell that to the trigger-happy damage dealers who are risking a wipe every trash pull because they want to gogogogo!
It's not like I do this randomly for giggles; like I said: I do it to teach them a lesson, which usually means I've exhausted all other possible ways to make them understand that what they're doing is hurting the team.
Tanking can be stressful enough without having to compensate for overeager damage dealers.