You've obviously never come across the patients who've been prescribed salbutamol inhalers for their allergy to pet hairs, and go around spraying the dog/cat with it! Or the man who's rubbing Nitrolingual into his chest, when he gets chest pains... Or the woman who wouldn't take her tube of steroid cream on holiday with her because it said "for local application only"...
As Linnear will attest, it's not just the Cornish that are thick!