I had one of these that I carried a Browning Hi-Power in, years ago. I was working in a gunshop at the time, and it made a convenient way to carry my pistol at work.
One night I got home from work, let the dog out, and we romped around in the back yard for a bit before going inside. I went inside, and as my usual practice, went to put my gun up on the refrigerator. Imagine my shock when it wasn't in the holster. I retraced my steps in the backyard (It was snow covered, mid January if I remember correctly) and finally found it where it had fallen, unnoticed from the holster.
Still have the holster, somewhere. I'm not sure where it is, but I can darn sure tell you that it's never been on my belt since that day.