I agree with the above post. Given I have had my Jackson female, who was a long term captive when I received her, though not well cared for, I have had her for about 8 months and just in this last 2 months has she even accepted me hand feeding her. I can attest from caring for one and what I've read about them here, most Jackson's are wild caught, and most do everything extremely slow compared to other chameleons. They grow slow, drink slower, tame slower, trust slower. They are quicker to lose trust but less likely to act aggressively. So you must be very aware of their stress signs and colors. I have yet to meet a Jackson who has ever hissed at me or bit me. However my girl Hope does show her uncomfortableness by puffing, hesitating, darkening, and trying to hide from me. These usually are all during medicating or health checks. Sadly I was not able to slowly build trust with Hope she came to me with severe MBD and I was medicating her and taking her to the vet on a regular basis until about 6 months in. She hated my presence until around the 5th month in. Then as she started to feel better I was finally able to pull back on the medicating and stopped going to the vet. She calmed toward me going toward her cage when before she would hide as quick as possible as soon as I entered the room. Eventually I started trying to hand feeding her silkworms I won her trust enough for her to willingly climb onto my hand. That day I took her outside, and since then we have never looked back. Though I do still medicate her and she hates it still as she should, she accepts it.