I've done a lot worse; I was once chatting away really loudly in Thailand and halfway through my long ass story (A lot of asses in this post...) I realised my mate was staring at me as to say "shutdafukkup..." I looked around and realised that not only was the Thai national anthem blaring out through the speakers (The fact I didn't hear scares me to think how loudly I was actually talking...) But everyone was actually standing silently in respect. So yeah, we've all been there. As long as an angry mob doesn't chase you down the street I consider that a successful day out...