Etiquette advice

Don't hold back. I went through a phase of carrying a can of spray oil around in my bag (even as a pedestrian) and just guerilla lubing people's squeaky atrocities if they were going slow enough or stopped just up the road.

And if my fly was undone, or I had a bogey sticking out my nose, I'd want people to say something too. I'd think they were a twat for not saying anything. Let's just all be open, honest, and finally shake off repressed Victorian sensibilities.

I agree on the whole. I wouldn't, however, willingly engage in conversation with a rude boy riding his (stolen) halfords full suss on the pavement, who is with one hand holding his pitbull on a dog leash, and with the other hand rolling a spliff, whilst simultaneously talking on his mobile phone.

There is a line.