Manchester Museum has a cursed spinning statue

Yes we know it sounds like a bad movie..but..the 10 inch tall relic dating to 1800 BC is a statue of a man called Neb-Senu and the staff were baffled that the statue kept rotating 180 degree`s.
Now if you look at the video carefully you will see that when people walk past, the statue rotates.
Sounds like a case of vibrations due to the movement.
But, it only has recently started this strange behaviour.