I've a work colleague who never seems to stop banging on about environmental things. Constantly nagging about people going on holiday by plane, driving to work, using plastic bottles etc.
The thing is that he has two kids and has a third on the way - all very much planned. So WIBU to interrupt his next diatribe by pointing out to him that I could go on a transatlantic flight every year for the rest of my life while driving a fleet of gas guzzlers and it still wouldn't amount to the level of environmental damage his choices are causing?