In days past, Santa had to draw up a long list of deeds and misdeeds to determine who was naughty and who was nice.

Of course now there's an app.

Social Santa trawls through your Twitter account and adds up all the bad words you've ever used, then assigns you a naughty or nice rating.

Give it a try here.

We can assure you all our staff are lovely people.

Hat-tip to Joe.ie.