Why such thing happen in our world???

Today, something which is quiet common happen again...and this time, it stepped my 'tails'...I was thinking and thinking again...why such ppl can sleep until very late, skip classes, and blame ppl for everything still can help other ppl do somemore lame things...OMG...seriously...i think i better spend my time to sleep then do that...Now only i realise a concept, which is when u dunno something, it is not ur falt, but is those who know's falt..( exp: when u dunno the existance of microfost, u can actually blame Bill Gate)...haha what a joke, but i have friend like this...mayb my 'that friend' is genetically modified (GM) Homosapien Cordata. Please Do Not Laugh as u might scold by my 'that friend'...