As Metcountymounty mentioned in his reply to my first post (and thanks to all for your kind words), the copper's 'nose' isn't always some metaphor for an abstract ability to sniff out criminals... sometimes the copper's nose is just, er, his (or her) nose.You may think you know a bad smell when you come across one.Let me assure you, unless you're in end-of-the-line waste disposal, pig farming or the Old Bill, you have no idea.I spend a lot of my time with drug users.They wear several layers...