Grey hair doesnt spoil the beaver

My wife sometimes uses the phrase 'Grey hair doesnt spoil the beaver'. I thought it sounded funny. She claims it is a common phrase in other parts of the world. Anyone have thoughts?

I haven't heard it in the U.S. What part of the world are you in? ~rb

Tom, does your wife understand the connotation of the phrase? If so, it shows how far we have come towards equalizing the sexes, at least in the area of self-expression. Or, alternatively, the phrase means something altogether different from what I would expect. Incidentally, I, like rb, have spent my life in the U.S. without ever hearing the phrase.
SS

I couldn't find any no hits on google, other than this page. It's a good saying, although I'd be surprised if I heard my mother say it. Pamela

Surprised? I'd be completely shocked! More politely (and non-gender specific): Just because there's snow on the roof doesn't mean there's not a fire in the furnace.