Well we've had out Leo 2 months now. He's a year old. He is very active in fact one night my son left the top off the cage and he climbed up the tree and out of the cage! Took a while to find him hiding in the room. I read somewhere Leo's are little escape artist. This Leo is living in a space 3-4 times larger than he was at the breeder. He's spoiled. Lovely tile floors, 3 hides (warm, cold, moist). We were careful not to handle him the first two weeks and now only handle him once every 2 or 3 days for brief periods. He seems to love being handled. He really seem eager to go explore when you take him out! I read in one thread their Leo was getting to fat so they let him run around the house for 30 min a day or something. I imagine it is in a safe enclosed area of their house!??? I can see my kids having a blast building some tunnels and little forts/houses for him in our family room. We could surround it with some boxes or something to keep him in although if you keep an eye on him, when he gets close to something he can hide under where you can't get him, we just pick him up and move him. He seems to also really enjoy crawling on your arms, shoulders, back. Is there any general consensus on how often a Leo should be taken out and some good things to do with them when they are out? I know number one is never hold him buy the tail and be careful when holding him way off the ground, especially while walking over hard floors as opposed to padded carpet.