Welp just ran into the second person in one day to wast Limit Break on trash mobs. The first person stopped after a warning so no mention of him will be here. However one Dragoon by the name of Oxy Creed was so kind as to act like a brat and state "I'll use them whenever I want to" and since I was leveling my White Mage at the time I stated "You waste limit break I stop healing you."
Poor little guy was all mad and raging when he died because I stopped healing him. If you are in a group of people you know who don't mind you spamming LB all you want. Fine and Dandy. However if you're in a random group who will be using it at key fights and you waste it. *holds up Frypan* Don't be surprised if you're in my group and find yourself meeting this and if that's not enough, the heals keeping you up will stop if I'm holding that spot.