Have you any rough idea as to just how old this joke is..?

Q.What’s the first sign of Madness?
A. Suggs walking up your driveway.

Any thoughts on its approximate age much appreciated. For all i know it could just sound old and familair, but is actually knew and unheard? Unlikely though.
Thanks Chris Tracey
p.s: is it funny?

Dear Chris
It probably goes back to the 80′. Not that funny.
CB