I've got a couple that size in my 75g along with some smaller ones. They don't bother me at all since they only come out at night. My girlfriend is totally creeped out by them, however.
Boy, have I had to return a number of inverts because of that. I got banned from a petco because they wouldn't take back a brittle star, so I just went and dumped it back into one of their tanks myself.
yup... I have caught a few stripe bass on them. I would never think of putting one i my tank. They are nasty little suckers. When I use them for bait the first thing i do is cut the head off so it doesn't bite me.