My mom told me not to talk to strangers

I've always been painfully shy. There are some who would argue that fact but it's true.
Everybodys parents, when they're young, tell them not to talk to strangers. "If you do you might get stolen...or worse!" My mom always followed that by saying once they got me and had to listen to my mouth they would bring me right back. I took that to be the truth...not so much the "they'd bring me back" part but I was certain some crazy creepy person would take me somewhere I didn't know anyone and leave me there. That thought scared me more than getting murdered. I carry that fear to this day. When I was 21 I had to go to the DMV. I had an appointment but it was still a wait. I took my seat in the back away from everyone until a elderly lady sat down next to me. I felt myself cringe because even though she wasn't touching me she was still, as far as I was concerned, in my personal space. I avoided eye contact and prayed they would call my number. The lady turned to me and said "Hi. Have you been hear long?" I didn't even think about saying it but it came out anyways, "My mom told me not to speak to strangers." The lady looked shocked, like I had just slapped her, and turned to talk to the man on the other side of her who was laughing. In my defense, she did look pretty strange.