Imagine speeding down a motorway in Germany, doing speeds that would put you in jail in Australia.

It’s time for a rest stop, so you pull into a petrol station to refuel and use the toilets.

On your way out of the bathroom, you diligently leave some money as thanks, vowing once you’re back in your home country to never take a free toilet for granted again. 

So, what influenced you to pay? If no one was standing witness, why bother?

It was because you’re an honest...