Doing the lawn Sunday, my son was having trouble getting the mower to start. As I waited patiently for him, my mind began to drift, and before I knew it, I'd come up with a "START THE MOWER" table:
Pass 2d6 - the mower starts
Pass 1d6 - give up -OR- roll again, but count pass 1d6 as pass 0d6
Pass 0d6 - the mower isn't going to start at all
My son must have rolled pass 1d6, and then pass 1d6 again. We never did get the mower started.