It's really weird running into a total stranger that you're related to.
I'd gone to the grocery store for mom after she'd forgotten sugar and this lady comes up while I'm at the register. She asks if I recognize her. I had spotted her out in the parking lot when I'd pulled in and thought she looked familiar but paid it no mind and went in. So I took a wild guess on which aunt she could be: Aunt Donna? She grinned and said yeah. I told her 'give me a hug then, woman.' and we chatted for a few minutes. Turns out she'd only recognized me because of my mom's van and figured who I was.
I hadn't seen her since I was 15, and I'd barely talked to her at the time since I was mostly hanging out with my grandma. I remember when I was little she'd scared the hell out of me because I thought she was mean. lol