Talk nerdy to me

What is with nerds and their Medieval fascination? Dungeons and dragons, role play, speaking with a fake British accent, sword play, etc. I mean, you already stand out enough, which is fine, but then you go and make things worse for yourself by playing your games in a public park and wandering up to people (like me) in your fake accent asking me if 'I'd fancy a joust.' Sorry that I spat out my coffee and laughed but seriously, come on!