Ohh sorry I wasn't trying to troll. On live, bards could swarm kite some types of NPCs that are social in a certain way.. that being, they assist one another when attacked. I guess this social function sorta works here, but proximity agro on a bard is greater than the agro of a charmed NPC attacking one of their friends.
http://www.thedruidsgrove.org/archive/eq/t-251.html
For some reason, swarm kiting is broken here. Bards can still PBAE kite, and NPCs assist each other in a
mostly normal fashion.