I go for a walk in the park. I have something in my shoe. I'll take a look. There is nothing to be found. I'm going too far. After a while my feet hurt. I sit on a bench and relax my feet. Then I put my shoes back on because it's cold. I rest a little and fall resting. When I rest soundly a stranger comes by. He steals my shoe without me noticing. Only when I wake up do I see what happened. Oh no, the shoe is gone. I still have to go far with just one shoe.