Our scouts hall used to be next to this church, I cant remember why. I don't remember how or what the exact context was but on this occasion I learned the swear word fuck, at the time I thought this was hilarious, and when my dad came to pick me up to take me home  I kept saying it out loud in front of people, one of my friends kept laughing as I did so even as my Dad told me to stop but I didn't listen to him at the time, he reprimanded me pretty badly once I got home, I think he took my DS away for like 3 weeks or something. I think back on this quite embarrassed at myself, I think the validation from my friend drove me to keep doing it, and it was only after my dad sat me down and really explained what I was doing in saying that in public that it sorta hit me as a embarrassing thing for me to do.