I would like to voice an opinion to the BOND, that can happen with human and reptile.
And no, I do not believe they have the SAME deep emotion as humans, but I do believe they learn trust and can become bonded.
I purchased a female egyptian uro Cleo, 4 years ago(some of you have seen Cleo) from a friend who was working with her but had limited time.
She was severely burned, 3d degree burns on back and sides. Open bloody fleshy wounds that took almost another year to get closed.
Daily, soakings in provodine, and I can't even count the amount of tubes of neosporin used during that time.
This girl was held in a towel most of the time just to keep her calm.
Basking light had to be so low as not to hurt her open wounds that she was dark brown in color, and barely warm.
Anyway, Cleo and I bonded so strongly, that just calling her name she will run out of her slate rock burrow and come to the side and jump up to come out.
When out and running on floor thats set up with rocks and appropriate for lizard exercise, LOL, she will come to me when I sit down and sit with me.
This lizard is so trusting of me, and I of her, and it is not just for food, or in my mind, It is a rememberance and trust and bond created, when she was suffering.
Anyway just my thoughts, they can become a trusting friend ! 
Eve
Cleo A BIG Sweetheart




