in my OPINION arg. tegus are one of the most FUN AND INTERACTIVE large lizards,i kept 2 of them from 93 til 2001.i left the reptile hobby for a few years and have recently started my collection again.so i got a female about a month ago,and let me tell you she WAS evil!but i have found which most "pros" concur,that the important thing is feeding.a regular schedule and regular dish is essential,on days i go in here cage that she hasn't eaten she is still a bit rammy(feeding response).in the short month i have had her,her attitude towards me has changed so drastically it's quite amazing,how there is no longer fear of me...which is probably nothing more than learning to associate me with food.and she is quite intelligent on top of it...with my girlfriend she is only happy if she is snuggled real close under neath a leg or something,but with me she wants to be on my shoulder or somewhere up high.i say go for it,get one...and enjoy they really are quite rewarding.