I'm yet to see a flying saucer or little green man but when I do I'll believe!
Keith, I think we have spoken about your experience of this before. It happens sometimes that those that have passed on 'drop in' as it were. They get confused or repeat a work journey or return to an area they used to live in or love. It's nothing to worry about, they are harmless.
Kent is one of the most haunted areas of the UK!
As always I am more than happy to answer any questions on the subject (or drop me an e mail if you wish to discuss anything in private or send a photo for me to look at.)