I will never forget the time I was on the bus and I heard some middle school-sounding kid say to his friend "Stop being so autistic, Sam," using autism as an insult.
And another kid, presumably Sam, said "But I am autistic."
That one... that really stuck out to me. An autistic kid having his own disability thrown at him as an insult. Every time I see someone use autistic as an insult, or "acoustic" and "artistic," I think of Sam.