In a meeting you have no stake in? A social setting you cannot connect with? Around people you do not relate to? In a place that disagrees with your lifestyle? A job that fails to inspire you? Then get the hell out of there. Don’t waste time. Time is money (and more valuable than money). Walk out. Pack your bags. Just go. You have an important family obligation. Impending deadline. Death on the horizon. Get out. Move on. Be as polite as possible, but leave. Think of the things you could be doing instead – and go do them. The impact you can make on the world and your own life while doing those other things far outweighs the egos you rub sitting still. Looking back, those offended meeting attendees will understand and forgive you for it.