Just always respond with "oh yeah it's slippery" no matter what they ask and they will stop talking to you.
Anytime a cashier or other service employee tries to make small talk with me anything beyond:
>hello
>how are you?
Or
>did you find everything ok?
I make an effort to avoid avoid visiting that establishment in the future. I have programmed responses in my brain to respond to these aforementioned statements/questions but anything beyond that and I get heatenings and have trouble formulating a response. Maybe asking about the weather is ok sometimes too if it's snowing or icy, then I can say something along the lines of "haha yeah it's getting nasty out there" or "yeah it's a bit slippery"
Ii suffer greatly as assburger in country with culture of mindless smalltalk. I wish I lived in finland or something
My family was extremely poor when I was growing up.
One time I broke my arm at the elementary school playground and my dad refused to take me to the hospital because we "couldn't afford it." He sat me at the kitchen table and got my sister, who was left-handed, to try and teach me how to write with my left hand "while it healed." After 2 days my mom eventually just said fuck it and took me and almost left him over this.
Taking me to a psychologist for any reason at all is not something that was anywhere in our universe. I have zero doubt that I am severely autistic though, almost stereotypically so, all the signs were there, especially as a child.