Was cooking with my mate the other day when he asked me to start by turning on the veg. Apparently fingering his disabled sister wasn't what he meant.
Are you calling her disabled sister a vegetable? Was your intention to hurt the feelings of the disabled?
Yes, I don't really care about mentally challenged people.
Labeling disabled people as useless is cruel, and a harmful stereotype against the disabled community. Rhetoric like that marginalizes disable people and pushes them to the fringes of our society when they actually have a lot to offer. You should do some research to learn about their many contributions to our modern world.
Why? I don't care about them.
I hope you change your mind and care about disabled folks. Your best friend's sister is someone who he cares about love, and you mocking her makes you a lesser friend in the process and if you continue doing so, you may end up losing your best friend because you have not been respectful to him and his sister. I hope you change for the best and have a better understanding of the situation.