If it happens once and it wasn't intentional then I'll tend to let it slide, but if it keeps happening and only to me then yeah I'll report it because clearly there is some targeting going on for no reason. Never underestimate the combat log though cause even if players don't say anything in chat, GMs can see if "X used Rescue on Y" followed by " Y received 99999 amount of damage", and if it's there multiple times then clearly something is going on.