Actually :).. I wanted to scare off my cat who climbs onto my chair in the morning and bugs me from behind. So I searched for the thing on youtube and put the volume to the max... At first my cat was a bit worried, but by now he got used to the crazy machine I have here and he just rubbed his head off my iMac.. I on the other hand... continued watching the video and then I clicked another one and possibly another one.

Why exactly I did that is a bit more complicated in this case - I guess the insatiable necessity to entertain the brain which we got so used to with technology... And it's getting more and more stronger as more people become 'addicted' to constant stimulation. But I still don't have the definite answer to that though...