I went shopping with my parents...

and discovered that now that they are in their 70s they are officially in that special group of super annoying old people who block the walkway in the mall by walking painfully slow, stopping abruptly with no consideration of those coming behind them and walk in the middle of mall traffic.    Sigh..it was torture to be a part of it. 

 

http://www.youtube.com/watch?v=MJwb_wEaW2M&feature=share

Even this clever Japanese idea wouldn't help the situation...my dad is too deaf to hear the bell!!