[dhubris]

I similarly have a strong startle reflex. I hate open office spaces, and particularly office spaces where my desk has me without my back to a wall.

People moving around behind me is very stressful and distracting.

Similarly I'll never walk up behind someone and tap them on the shoulder if I can help it. I always try and come up beside them, in their eye-line and wave or say hi to get their attention.