Once when I was 8, a friend brought over his PS1 and Metal Gear Solid. We played pranks on the guards in the zone that has a bathroom using claymores and Nikita missiles and called snake the Toilet Stalker. Peak 8 year old humor, I couldn't breathe from laughing.
Another in High school, visited my older sister in the dorms and the boy floors were having a massive halo Lan party since all the rooms were connected. I had never played a console shooter before but the guys were really welcoming and wanted me to join anyways. One match came down to a 1v1 with me and one of the good players, I almost got him with the sniper but lost. I wasn't too bummed but afterwards everyone on the floor cheered me up. I stomped the same guy later that night in warcraft 3 and that one felt good.
In aquascaping/Planted tank community, some call duck weed 'tank herpes' cause once it's found its way in, there's no getting it out permanently. Eating it might be interesting use for it though, always nice to find a way to reuse biproducts from any hobby.