I have a tendency to cast it during the last mob of a pull, or I've extended it via my cds on ast. If you take it off, I'm Thrilled Your Intelligent! lol However, as I've never seen a tank do this; even as my whm in ARR; I'll assume they don't realize it's still ticking on them and will run to them. This usually will result in me standing in a cleave, but at least the tank doesn't have to run around the map because the healer has shit on them >.> That drives me insane when I see that on a dps.