Ghost-busters: debunking of the blue petrol station ghost

There's some footage doing the rounds on YouTube that people are claiming shows a blue ghost haunting a petrol station.

Here's the video as featured on a news bulletin:



What do you reckon? I don't think it looks overly ghostly, but what could it be? It moves like an insect, but are there many blue insects? A fault in the camera's sensors could colour the insect blue, but the blueness seems to follow the insect around. It could be blue plastic, but the movement doesn't seem consistent with something that is being blown around.

Well, if it's too hard to work out in 5 mins, it's gotta be a ghost, right?

Not so fast. Here's a video that gives a brilliant explanation [via skepchick.org]:



I'm really impressed by this second video. It is very well thought out.