Sandworm and Dark Ixion have Rage Timers.
The only ban I ever felt bad about was me being banned from the official forums. I still felt it was a bogus ass excuse and I could have fought it but I decided I didn't like it there enough to make the effort.
About Sandworm & Dark Ixion: I was the person responsible for getting the god damn GMs to change their policy about non-interference. When our shell was camping Sandworm, I got claim on PLD and just did melee hits on while holding it waiting for the rest of my linkshell to show up. During the fight, a GM showed up and spoke in our party chat which obviously surprised me they could do that and told me that I had to damage the mob or I would be fucking jailed.
I told the GM to fucking look at me hitting it & explained to him that this mob had a damn rage timer with which he told me to hurry up and damage it. Thankfully the rest of my Linkshell arrived and we finished it up. I was pretty fucking pissed about that whole exchange so I contacted a GM and got the same one who spoke to me before and explained to him that he needed to understand what a rage timer was and why he shouldn't have interfered.
He was pretty dismissive or just plain didn't give a shit so I asked to speak to an SGM and finally got one. I explained to him what happened and why this other GM should have just minded his own god damn business. The SGM said he'd look into it and I thanked him and left it at that. About two weeks later there was an update note stating that along with Kings, Khim, etc that Sandworm and Dark Ixion were now on the list of mobs that GMs would not interfere with.
Good times.