Top fashion tips for travellers on the London Underground:
Cowboy hat: Not strictly acceptable but you may get away with it if you’re, you know, foreign
Cowboy hat and cowboy boots: Pushing it, verging on the OTT, but better than, say, a fur coat
Cowboy hat, cowboy boots and actual spurs: Too much.
You never have a camera with you when you need it, do you?