I most often see it used by a healer mistakenly "helping" me.

Like pulling me out of a weak aoe I could shrug off as a tank, or pulling me to a "safe zone" when I was already in another one, or pulling me away from an incoming boss aoe when I still had 5 seconds and was simply keeping high melee uptime, or pulling me as tank over to adds so I could pick them up when I was simply going to abyssal drain at range. I see why they're doing it, but it's mistaken. Nice they try.

I haven't seen a correct rescue yet though.