So yesterday I thought I would make a little gold doing random heroics. It seemed like a good idea at the time. First heroic that popped was Halls of Reflection and within seconds the tank disappeared into the nether. So we wait and wait until finally a bear tank appears with great health but no defense gear on. He couldn't hold aggro and we wiped, twice. I was done.
I waited my time and signed up for another. Halls of Stone popped which is an easy but annoying instance. To my surprise I'm struggling keeping the tank up in the first couple of pulls. Do I have just a Lovely Dress on? Am I naked? NO, the tank is in lvl 78 PVP blues and so I nicely comment "don't forget to put on your tanking gear dear"..no response. He continues to move forward and we wipe as he pulls a boss with some mobs. "So if you don't have tanking gear, you really should drop out of the group", I stated once back in the instance. As the words left my mouth he aggro'd a bunch of stuff and we die again..finally he leaves group before we kick his ass.
All in all it was a terrible random morning.
Permade randoms with guildies are definitely the best option and that is what I'm gonna stick with when possible.