I guess i could say it was the weirdest because of the advice, and that it was in one of those father-son bonding moments. But i was a kid, and got into a fight, i was suspended, since i really beat up three guys who were trying to bully me. My mom freaked out and wanted my dad to spank me, but he...
He picked me in school, and while going home, he just stopped at the comics shop for me to get some comics (mainly Batman and Spider-Man stuff), when we get home, we were in the entrance, my mom was already expecting us there really mad at me, and my dad still composed asked her to getting inside.
So, there he asked for me to tell him the entire thing, what happened, how it happened, and i answered him. I was never the lying kid type, so i told the truth, how theses guys were trying to bully me since the start of the year, and that they tried to attack me because of my answers. That was when he told me:
"Look, you did the right thing. No one has the right to take one hair out of you, and people who goes into violence lose all reason right there. But if someone is stupid enough to try to use violence against you, i'm giving you full permission to fight back and defend yourself, and i hope you send them to the hospital."
So yeah...That's one advice i'm passing along to my kid, it helped me a lot through school.