If I'm on my whm I'll just give him a regen then start soloing the next group.
Don't worry sensitive tanks, I'm not pulling extra groups to you, or forcing you to tank them. I'm soloing them. Because it's dungeon trash. Because I can actually do that. Because regen is enough to heal you through the pittance that you pulled, so you don't need me there anymore. I may as well go do something else, like solo the next group. If you don't wanna feel pressured to pick up the extra group, then don't; I've got it covered.