Fight or Flight Syndrome: does this include eating?

I came home tonight from the gym at ten o’clock, ravenous, to find leftover chicken BBQ on the dinner table. So I dropped my bags, haunched over the table (too hungry to sit down) and started inhaling a drumstick. Outside the kitchen window, the hedge whacked into the pane suddenly. I froze, staring into my reflection: I stood over my food with my hair on end, arms outstretched, and chicken in my cheek, not much differently than my dog does when Damon looks at him sideways. But I wasn’t about to run to the window for a face off, up close, to see what I was up against. Instead, I stood there, chewing the meat, guarding my kill and watching the bush sway back and forth; all I could see were the illuminated leaves beating against the glass. After a few seconds, it ceased.
I kept a blind eye on that black window, until I was convinced the animal had either left or settled comfortably in the bush to stare at me while I ate, and then I licked my greasy fingers and continued engulfing bird parts.