SUBREDDIT: r/AskReddit
TITLE: Reddit, what is one memory of yours that is linked with a special sound or smell?
POST: I will start.
When I was 12 I sat in my room playing
TL;DR: 
WHen I was 12 my mother dropped something in the kitchen, I looked after her and found her on the ground, diagnose stroke and heart attack. Now Everytime I hear a noise I think of that evening.