My father popped in to visit me this am. I dont know him terribly well, but we are on nice speaking terms, as adults.
He spoke in brief about his step sons girlfriend, who is 'nuts' (his words) and then at the end, he said she had been diagnosed as bi-polar. He is best shot of her according to my dad. 
My children were around, vaguely playing, so I didnt feel I wanted to flare up a conversation about how I thought that was a crap way to speak about someone who is suffering from mental health issues like that.
Been there myself (not bipolar but depression).
In essence, he epitomises judgementalism of those with mental health issues and I didnt like it, it seemed so callous.
Its kinda saddened me. AIBU?