Never too old?

I may be getting obessed with Google search terms, but don't they offer a window into other people's thoughts? Today's favourite is the phrase "too old to be spanked".

There's an interesting question, isn't there? I suspect the googler was picturing some lissom young thing eyeing the paddle and protesting: "But please, I'm too old to be spanked..."
My mind went a different. When do you become too old to be spanked? My first thought is never, ever. But then I picture myself in years to come, an Octogenarian resident at Shady Pines and think that perhaps a time does come when one should bow out gracefully...