Judge Light or test AD instead
If our old pally tank taught me anything, it was to trust your healers, and pretend you're an immortal sparkly paladin GOD until Ardent Defender procs.
Hah! This post made me laugh because I've seen paladin tanks do this way too often in heroics (exorcism in the middle of a pull too). I am leveling a paladin as prot right now and I don't even know what heals I have because my bf's priest is always spamming heals on me.