I'm not sure that being grabbed by the wrists and pushed is something that's in need of being worked on by you? Nor is a hand grab in the workplace.

Boundaries do matter, at the same time, most will come to recognize the skittishness that comes from a natural subconscious recoil that speaks volumes to a need to have personal space respected. Or maybe it's my own personal experience talking that I realize after the fact that my own anxiety creates that boundary? I'm the jumpy/recoiling type when my personal space is invaded without invitation, so to speak.