I just had Big Bertha ( 3.2 foot female T.s. concinnus) outside for a run in the sun and she naturally made a run for it. Twice, when I circled around to cut her off she did the viper impression. I hollered "go get my camera". Naturally, after I got the camera, she didn't do it again. Still got some great shots though.

She looks almost regal to me.