Bloods are great! Definitely one of my favorites to keep. I had only two individuals over the years (out of about 7 total) that were cranky...the rest were all super mellow. I threw one of my old t shirts in with the first one and she ended up being puppy dog tame. The second one I purchased as a large adult male and you could do whatever you wanted with him for about 10 min and then you were done. He was very vocal and would twitch his tail, so he always gave me fair warning and I never got tagged. I always kept my babies in small tubs (like a ball) to feel secure and I didnt worry about a hot spot, just the ambient temps.