I usually (when I could walk - people don't usually ask WC people) say MS but DH would say it was from the sky-diving accident which made me giggle. At a school thing elementary) I did walk funny and crashed into a wall. My 12 year old DD whispered, "Mommy, that man is laughing at you." Taught my kids on the ride home as someone taught me long before MS to think in your head "You're an @$$hole and I'm not." My neighbor does like to say I like to yank people's chains. Please remember it is not your job to educate everyone. As an ex-teacher I know you can't.