Catch out your mates with an electrifying surprise!

This novelty pen will surprise anyone that tries to use it with a harmless electric shock. If you work in an office where colleagues regularly steal your pens, this is a great way to catch them out.

If you twist the pen’s base, then a useable ballpoint tip will emerge, but beware – if you click on the top button in the usual manner for a pen that looks like this, you’ll get a shock!

As this item does emit an electrical shock, it should be used with care, and kept out of children’s reach and not used by anyone fitted with a pacemaker.