Yeah I've read a little on garra rufa when I was reseaching these guys, but I wasn't expecting such similar behavior. I mean I have like 30 second to do stuff before they start attaching to me. It feels so weird! One is Ok, but if all 4 are sucking on my arm it starts to weird me out. If I pull my arm out too fast they come out with it. It takes them like 5 seconds to relise this. Then they let go and plop back into the water. If I put my hand back in right away they all reattach themselves like nothing happened.