Does anyone else just start laughing at random shit that happened a really long time ago for no reason?

Yeah I do that, but about shit from YEARs ago. Like in year 5, when my GF was telling some story on stage about looking in a bag and finding a dead seahorse, and my idiot friend did an impression of it where he looked in the bag, and the seahorse came alive and attacked. We nearly died of laughter and I think one of us ended up being thrown out of the school hall. I mean that was 20 years ago and I still laugh about it.