Wots going on 'ere then?

[ChemicalChaos]

This has happened to me a few times recently..... I'm at a loss to explain!

[RacingPete]

Very weird.

The only thing I can think is that the cache in your browser for the background of the header has got confused with the smiley face and is rendering it wrongly instead.

[McWigglebum4th]

Or

Someone has dropped an E in the hamster cage