Inspired by the dozen of anons the spiritually psychotic lady sent,
I'd like to share another chef's kiss manipulation hack with you;
Keep track of the insults the desired target uses when they're triggered.
Towards you, or someone else. Even if he's not directly verbally abusive the things he looks down upon on you or others will slip through. That's his insecurity.
When we're flustered or triggered or even just stressed and the aggression leaks out, our brain's first motive is to attack emotionally, to keep us safe. Most people aren't quick or deranged enough to hurt others with what hurts the opponent specifically custom taylored routinely. The brain asks 'what's hurtful?' and picks what your unique experience has concluded most hurtful; Aka your insecurities.
This in mind you can bring him up, or tear him down effortlessly & innocently when suitable.