Problem: "Oh there's nothing to do on my downtime on my healer because I'm a green DPS"/s
Solution from SE: "Here's something you can do, Rescue!"
Result: "Trolling"
Seriously, I've seen quite a few places where Rescue could optionally be used, but they're along the lines of "pulling player out of a animation/stun" lock more than anything else, and that has limited strategic value unless the target was already squishy.
