I used to work in a furniture factory.
Sofa Surfing! What you do is you take 2 sofa carts (2.5x3foot flat wooden board with wheels on the bottom) and lay the sofa across them with one at the front, one at the back. Make sure you have a lot of open space, push the sofa utnil you are in a full run, then jump on and hope the boss doesn't see! Like the forklift racing story above, it ended when I rolled a sofa >.>
But that quickly turned into scootering around on a pallet jack. That went from something fun and turned into a very useful way to get around the factory floor.
Before that I worked at Superstore as a... janitor
One day the garbage had piled up so much (I had a day off...) that in order to get to the Garbage Compactor I had to throw garbage from one end of the room to the other, 40+feet. there was some full pop cans, and the compactor doors were open. inside the compactor were nails sticking out of the wall (WHY?!) First pop can I threw, impaled on one of the nails, from 40 feet away I was still covered in exploded Pepsi... Spending my day throwing stuff was fun, the mess wasn't, haha!