In what game modes do the events happen.
I was told only the room on the main menu after you log in have the events.

Vanilla, Normal, and Racing game modes have events. Occasionally Survivor rooms will also play events, but sometimes their time is incorrect.

Generally, you'll log into a vanilla or normal-mode room, so events should play. There is a minimum number of players in the room to get teh event to occur/count, but I'm like three years behind what that number is (it was 4?)

They play in Vanilla, Normal, Racing and Sometimes Survivor.

They used to play it in Bootcamp but I don't think they do anymore because it glitched too much.

There must be atleast 4 mice in the room for the event to play.