I have one and we respect each other. He loves the camara and swims all around me and my hands and I also hand feed him. When he gets me worried I tell him with a swish of my hands to go away.Only makes me worried when the other fish come close to me he will show his dorsels at them.He wants me all to himself. He was very shy for the longest time and when I was working in the tank he would just go hide and turn spoty black and grey. Now after having him for 3 years he loves me and swimms under and over my arms when I am in the tank. He does not touch/rub me though. Well he did bite me once scared the crap out of me! His mouth suprised me how hard it was and has teeth/gums like a catfish.
I repect him as I know he can hurt me with his dorsel fins. Painful but by far from deadly. They are great fish and does not bother nobody are anything in my tank.He just swims around and nibbles on my live rock. I think it would be a good choice they are a neat fish.
Needs a 75 gal or larger to be happy.