An anecdote............
Years ago returning from an exhibition set-up in Europe somewhere (cant remember), I was stopped at the Eurotunnel by customs for a spot check in my van. All was going swimmingly with me stood at the rear of the van with a couple of French customs guys discussing the weather whilst a lady customs person had a sniff around my van with her spaniel. Suddenly they all became rather serious, speaking foreign so I couldnt understand

The lady came to me at the rear of the van and said "my dog cannot smell". Well, me being me immediately said "not much use as a sniffer dog then"

That went down like a lead balloon..........
They then proceeded to completely strip my van. When I say completely I mean the wooden sides, floor, the bloody lot

So, after an hour and them not taking kindly to any more of my jibes, they found nothing.Turned out that the "problem" was that weeks earlier I had been carrying Hugo Boss after-shave concentrate in 10 gallon drums and one of them had leaked into my wooden floor thereby negating the need for me ever having to buy air fresheners for the van ever again but the customs thought I was trying to mask the smell of drugs
I learnt one thing that day.......the French dont have a sense of humour
