NO.
I keep an eye on him when I put my hand in the tank. I usually keep him at bay with an algae scraper and use my other hand for cleaning the tank while never taking my eyes off of him!LOL
That thing is so cool,did you get him off Live Rock? or buy him seperate? how big well he get,what does he eat and i doubt it but..does he have/or did have any tank mates?