unprepared'''....

i prepared myself every time my friends visit me.but this time i didn't expect that someone surprise me.it's my old friend he didn't told that his going to visit me. i wonder why he knew my place.......when i asked him where did he get my address..he did not answer...then i remember that we had a common friend.......it was a surprise for me when he came. what a shhoccking Day....?