May I offer advice? DON'T OPEN YOUR DOOR to people you don't know. Its that simple; talk through an open window - or a closed one and politely say 'no thanks'. We get people asking for money for various causes and this is how I deal with them. I once got a very persistant girl begging (she said she was my neighbour from up the road and she had no change for the gas meter and her baby was cold. She said if I could give her ten pounds her boyfriend would be back from the cash-point in a minute). I said I couldn't open the door as my cat was on heat and that I didn't have any money. I think I might have been more intimidated if the door was open. I have a feeling her 'boyfriend' was waiting round the corner. Anyway, just do that. It does feel strange at first but you get used to it.