CW: transphobia
So my dad's cis but really outspoken about trans rights (and queer rights in general) which has led to him arguing with all sorts of reactionaries in, like, Facebook groups and shit.
His go to arguement has been to demand the transphobes prove he's a man and then poke holes in whatever proof they suggest as they grow increasingly flustered and run out of arguments. After which he'll hit 'em with a line about how all they've got is his word on it and that's all that should matter.
And, well, I've had a hard time of it recently with transphobia so it's been cathartic seeing him just verbally steamroll these dickheads, laughing the entire time.
Shame the extended family are kinda a nightmare about their transphobia (so bad that I'm not going to out myself to them 'till I have, like, at least an entire country between myself and them), 'cos it's nice having supportive parents.