Alf has acquired some more wisdom this morning, even though he already was well blessed in this department.
He has learned it is unwise to pick things up on a public beach and then try to sell them.
He has no great urge to go looking for things on public beaches and trying to sell them, it should be understood.
But he knows that some of his constituents are apt to go to the beach, and he is passing on his newly acquired wisdom to these constituents to help them avoid trouble.
The wisdom in this case has been imparted by a South Taranaki iwi negotiator who has pitched in to discourage a bloke who is trying to sell a bone which he reckons is a moa bone.