A word of warning for those of you who may be regular Tesco, Asda or Waitrose customers. Over the last month I became a victim of a clever scam while out shopping. Simply going out to get a few bits and pieces has turned out to be quite traumatic. Don't be naive enough to think it couldn't happen to you!

Here's how the scam works:

Two seriously good-looking 20-21 year-old girls come over to your car as you are packing your shopping into the boot. They both start wiping your windscreen with a rag and Windolene, with their breasts almost falling out of their skimpy T-shirts

It is impossible not to look.

When you thank them and offer them a tip, they say "No" and instead ask you for a ride to another Tesco or Waitrose. You agree and they get in the back seat. On the way, they start having sex with each other.

Then one of them climbs over into the front seat and performs oral sex on you while you are driving. Whilst this is happening the other one steals your wallet.

I had my wallet stolen on December 14th, 19th, 20th, twice on the 27th, 29th, and 31st. Also January 4th, 5th, 6th, twice on the 7th, three times just yesterday, and very likely again this coming weekend.

So be careful.