Anything that causes you to overreact or underreact can control you, and often does.
Anything that does not belong where it is, is an "open loop" pulling on your attention.
My opinion is that anybody offended by breastfeeding is staring too hard
There are no interruptions, only mismanaged inputs
Some people have to move, physically, to "get" something. But if you're stuck in a chair, that's not your limitation - it's simply not an optimal condition for you.
Without a gut-level sense that you are ultimately in control of what's happening to you, you won't even consider the option that you could manage it better.