Muck up day

I'm trying to make a list of things to do for muck up day. Please add some.
#1. Let loose three sheep in the school with the numbers, 1,2, and 4 painted on their backs. They will spend hours trying to find number 3.
#2. Walk a cow up the stairs. Cows are unable to walk downstairs. This has been done at my school, they had to get a crane.

I dont want to sound stupid but what is muck up day??

We may just have Muck up day in australia but it is the day where u have finished school and u just celebrate by doing wild things that u couldn't do at school 'cause of the STRICT law and rules. Its pretty much a really dirty and rough celebration for the conclusion of high school. But it has to be sensible.
But i don't know what kind of things u r allowed to do so i would'nt know.

what the muck . get it this is mucked up. hey, muck you. i was so mucked up at the party.

Ha Muck you all. you mucking muckers