It appears I'm actually in Rochester - the 2 minute walk to the pub took me out of Chatham. The landlord is a 26 year old Polish vegetarian. I'm not making this shit up. When I asked him what Chatham was like he growled "Chatham is OVER THERE. Rochester is far nicer".
I told him there are lots of Polish working at Gatwick and most were lazy. He seems to have taken offence at that. Good Guinness, mind.