On the edge

Sometimes I wonder what actually makes people do what they do.
I mean what made this person spend hours on photoshop manipulating an image to make it look like someone is about to jump from La Tour Eiffel?
Or, if it is in fact real what made that person be on the edge about to jump into the Trocadero gardens.
Or why do British (or Scottish) bands always make themselves look like it's 1965 and they are the lost skinny members of the early beatles? (Read Franz Ferdinand on the Today Show on Friday morning)
Or what makes people who make Bollywood movies make them so incredibly daggy?
http://www.badmash.org/videos/videos_flv.php?v=jan_pehechaan_ho384K_Stream.flv&t=Gumnaam

Peace out playa