HL2 on Steam had an achievement called "flushed" if you killed a combine with a gravity gun toilet.

I was about 15, HL2 was my first "real" video game that I bought with money, the xbox did not exist in my country and I've never heard of game achievements before. In the second last act of the game, in the push towards the citadel through waves and waves of combine, I was low on ammo, and stresses out. I picked up my gravity gun and started lobbing junk to the enemies to get away from them. I picked up a toilet and chucked it into a whole pile of combine. As I paused to have a brief chuckle about the absurdity, Steam chimed with that achievement.

It was as if GabeN Himself looked over my shoulder and went "heh, nice" when I did it. Truly magical and a gaming highlight for me.