I was volunteering for Safety this year.
Early Saturday morning:
We are notified of a tea party that is taking place in a elevator and I'm asked to break it up. When I find said party, they're sitting on the floor with a doll house sized China set and a bottle of Coke in a ice bucket. I throw them out of the lift and tell them to take the party to the Gaming room as they have space and tables. (rumor has it they did this a couple more times)
Later on during the day:
I'm in the lift as I got out of my Dante cosplay and went down to the floor to go relax and have a good time. I'm stopped on the 8th floor to see a pick-nick going on. These girls (I believe) were pushing the buttons to call the lift and then would offer food to those who stopped. I got after them to stop or I would go get permission to break up the pick-nick from the Safety desk. Once I do get permission, I go break it up.
I'll post more when I can remember them