Adoptive relative is against adoption

Wouldn't it be good if we could all just shape shift and show up when people like this open their traps. Simply appear like the peanut gallery, elbow our way into the cheese trays and pickle dishes at the dinner table and say things like..... "Excuse me for interjecting but have you completely lost touch with reality. Do you have any clue how ridiculous you sound? It's a pity about your impediment let me help you remove your foot from your mouth" or how about hanging a sign on her back saying "please flip switch to engage brain before mouth opens".