I have found that a lot of older people are usually curious about my appearance, whether it be my hair color or piercings. My favorite incident besides Goodwill was when I went to bingo with my grandmother. I had just colored my hair pink a few days before and I had a fairly new lip ring. This cute little old woman walked up to me while my grandma and I were waiting in line for our cards and stared at me. I kind of smiled and said 'Hi.' She continued staring at me and finally asked 'Do you care that people stare at you?' And I said no, I was just expressing myself and I understand that people are going to stare, but I am okay with it. She kind of chuckled and told me I had a big set of balls. I about died of laughter.
Anyway, I am glad that there are people out there that are just curious as to how locks work and they aren't assholes about it.
And to the woman at Goodwill, I hope you have a nice life as well.