I have done the 3x post thing myself! 
Darwin is situated in the hall so sometimes I feel that I startle him when I turn the corner or come up the stairs. I am used to chams, who respond so differently b/c their eyes are their main sensory source (very minimal hearing). Sometimes it seems he is oblivious to me until I am right there, and other times he seems to "hear" the creak in the stairs.
-----
Chameleon Help & Resource Info
0.1 Veiled - Luna
1.0 Beardie - Darwin
0.2 felines - Kyndra and Líta
1.0 African Clawed Frog - Skipper
0.3 Mad. Hissers (2 died ;(
0.1 Chilean Rose Hair Tarantula (no name yet)
0.1 Goliath Bird-Eater Tarantula - Natasha