This is one of two videos that are currently doing the rounds, concerning the Jervis Centre in Dublin. There’s around 10 secs between 0.28 and 0.38 where the object makes some strange movements (it’s too low quality to be able to say what the object is, though it’s assumed to be an apple).
The downside is the frame rate and low quality of the video …. making fakery a real option. The up side is that the caretaker does seem to react to whats going on, making the chances of an object being manually added later all that less likely.
Interesting, but not definitive in any way – have a look.