some junk for thought

What's common between M Night Shyamalan, Serena Williams, Nikolay Davydenko, Sehwag and Salman Khan?

 

A: You never know what you are going to get. These gentlemen and Serena are capable of surprising you to the extreme. When you see The Sixth Sense, you wonder how could this guy make The Lady of the Water(or something like that). In tennis, you can never bet on Williams and the Russian Nikolay. They defy the laws of 'a palyer having a good run and bad run'. Right when you think Serena is in best of her forms and set to win French Open, she will lose to Srebotnik(hope I am getting the name right). I dont think I need to detail on Sehwag, the guy's career has it all - a pair of triple centuries to being dropped due to poor form last year. Same with the balding Khan. The only thing these people do consistently is being inconsistent and unpredictable.