Well, I slack all the time at work. It's usually cut grass, do water coolers, then slack the last 2 hours of the day. We drive these at work:
What we do is go to the dump where we keep all our sand, soil, sod, etc... and it's just all dirt so we do donuts and see who can get the most mud on the other person.
Interesting story about your friend haha. That's incredible that it lasted a year