Serious answerI am a keyholder for my office and often volunteer to stay late or come in at weekends when somebody (IT company, building maintenance) needs access. I get this time back in lieu which means that I can take a morning off for a punt with nobody being any the wiser.
Personally I gave up taking a dump at work when I found out the ventilation pipe from the bog exited next to the main door. Anyone standing outside having a smoke got a joyful rendition if said turd had a build up of flatulence behind it, amplified by the pipe even the quietest of dumps sounded like the QE2 setting sail.
I always make a habit of having a shit in work. That way I get paid to drop anchor. Similarly I've been known to have 'meetings' off site nudge nudge wink wink during the working day. That way I'm actually getting paid for some girl to polish my cock. No wonder the country is going to shit