Betty,

It's not you, believe me.  I read, in the NY Times about a year or so ago, that attacks on disabled persons were on the rise, and no one knew why.  It was speculated that there  might be an increase in intolorance, or perhaps rudeness, or simply that people are becoming more impatient.  I remember the author telling how, on the Washington, DC Metro platform, a blind woman was attacked simply because she was in the way of a sighted man who wanted to catch a train.  Ugh.

       Kathy S.