Cruel or callous behaviour towards animals in the household, or children, or waitresses in restaurants. All of it laughed off if you say something.
Many abusive partners will claim that "all relationships" involve pushing, shoving, grabbing, throwing, smashing things, blocking you from leaving a room, locking you in, destroying or withholding things that mean a huge emotional amount to you (pictures, photos, books etc). Nope. They don't.
If that line doesn't work, then the next line is that it's your fault. If you were only more clever/pretty/fast/caring/loved them more, then none of this would happen. Nope. Not so.
If you walk out, they're apologetic and smother you with compliments.
If you don't immediately return, that changes to abuse and threats.
The whole idea is to keep you totally off-balance and dependent on them, so they'll make it SO difficult for you to see anyone else, have any real freedom, or express your own views on anything without them turning it into something negative and personal.
The clever ones never raise a fist to someone. They'll do it all through this kind of physical and verbal threatening instead.