If visiting the UK, what is something you should NEVER do?

Posted by StrangerWest2756@reddit | AskUK | View on Reddit | 9 comments

I’ve seen similar questions about other countries and thought it could be interesting to ask the same for the UK.

For example, in the US I’ve heard you should never get out of your car during a police stop. In some places in Europe, people say you should always validate your ticket on public transport.

For the UK, I’ve heard things like always looking both ways before crossing the road (even on one-way streets), but I’m sure there are many more.

What are some things visitors to the UK should absolutely avoid doing?