Inadvertently, I got my answer about whether Rocky would bite me if I just stood my ground: as I suspected, the answer is yes.
I was washing my face in preparation of going to bed. Since Rocky was out, the door was closed, leaving me in peace.
Thomas opened the door to grab something (Seriously -- we are both adults. Do I need to start locking the door?) The water was running as I rinsed my face off, drowning out all noise, including the tell-tale click of macaw talons on the floor.
Before I knew what happened, I felt a sharp pain on my foot:
Rocky had followed Thomas into the bathroom and bit me! This was not an unforeseen situation, as Rocky frequently follows Thomas around, like a dog. Thomas knew he was right there. Thomas is just in denial about Rocky's intentions and wasn't expecting him to dart through his feet and charge me. I'm surprised he didn't try to blame the bite on the greys.
I'm not sure if this really qualifies as a bite, since he didn't break the skin, but it really hurt yesterday and I have a diamond-shape mark still on my foot today.
Since I am a runner, training was my first concern (Foot bite! That's the worst for me!) but I was able to run today, no problem. Lucky.
And Thomas is going to have to start being even more careful with Rocky.