Hi. One time while I was busking in a subway station, someone tapped my shoulder and kindly told me she was keeping an eye on my guitar case, because some scruffy-looking guys were looking at it hard, too. Being totally blind, I didn't notice that in addition to the coins that clanked into my tin, there was a good deal of that quiet money going in, too. I certainly learned to keep checking for it, putting the quiet stuff in a more secure hiding place.--A cautionary tale. ...Teresa