I'll put down 2:
We weren't big into PC gaming growing up, but we had Age of Empires 2 and Command&Conquer Tiberium Sun. We never played online or anything because I guess we were too young at the time. We only had 1 computer so couldn't play LAN. One day my dad took me and my brother to his office to "do some work" on a weekend (clean, cut grass, etc...), but just ended up playing C&C Tiberium Sun over LAN me vs. my younger brother/dad. It was a good time.
When I was in little league baseball, my dad and his squad would fly (Apache helos) over our games and do basically a circle and then kick off down to the base he was being sent to.