What is that 1 memory from your past yo ucould never forget and why?

For me its the camp i went too and where the the oldest kids could choose the music for every announcement (mornign , dinner, lunch breakfast, sleep time and more. around 10 times a day.)
and they thoguht it was a fun idea to use the song "Aqua Barbie Girl"
[youtube=https://www.youtube.com/watch?v=ZyhrYis509A]