Ad hominem immediately? Hit a nerve?
That wasn't an ad-hominem and it turns out you actually are handicapped. An ad hominem is like this:
"You're obviously false. After all, why would we believe a handicap?"
An ad-hominem is where you attack the person and claim it an attack on the argument, not attacking the argument
and the person, but if you defuse their argument and
then call them a handicap, that's just an insult. handicap.