The first week of living in a student house, instead of halls/dorms, we threw a housewarming party. Obviously as there were 6 of us living there, all of us with different social circles, we know that there'd be a lot of people but it was cool, we got out the plastic cups and plates and hid the breakables.
- One of our housemates (who is very shy) came home from his society meeting with other society members and a crate of Strongbow, and they had their own miniparty in the bathroom...we've never found out why.
- One guest found a plunger and plunged the ceiling with it. This was found hilarious by all.
- Every time I came in from the garden after a smoke, or from upstairs, there was at least one new person in our house who none of us who lived there seemed to know. My housemate and I worked in bars in the city, and for months afterwards we were getting randomers coming up to the bar saying "Hi! Remember me? I've been in your house!" and we just looked at them blankly.
Fortunately it didn't get out of hand, and a good time was had by all, but we were lucky - I wouldn't normally recommend allowing randomers at your party!!