DENNIS THE MENACE - What happened to his othe shoe?

Right before Mr. Wilson get splattered with water and flour you see him walking around the corner on the sidewalk he only has one shoe on. He had the two of them in the garage. The only point he would of taken it off is when he steps into the pool. But he just continues to walk leaving his shoes on and goes into the garage looking to see if Dennis has been playing with paint. You just see the shoe missing (on left foot) when he is walking to the front door before he rings the doorbell.