The secret to being a convincing liar? Tell your fibs on a full bladder

We put the 'inhibitory spillover effect' to the test: first by telling porkies on an empty bladder, and again after two pints of water

A person who needs the toilet is the purest person you'll ever meet. Stripped of all niceties and social conventions, and assigned with a task that simply cannot be allowed to fail, you briefly get to witness them for who they really are. Aggression, contrition, frustration and cowardice; these are all attributes that come to the fore when someone is consumed by the urge to urinate as quickly as possible. Plus, it turns out that they're scientifically better than you at lying.

In a study conducted by California State University, researchers concluded that needing a pee triggers something called the "inhibitory spillover effect", where the self-control required to prevent you from wetting yourself begins to aid the self-control required for you to lie.