Who's Knocking At My Door

Knock, knock, knock... I said " Who is there?" But no one answered Thought it was joke A silly prank one So I immediately opened Nobody was there So I took the grace Shut my heavy door As I turned my back Knock, knock, knock... I said "Who is there?" But no one answered Felt I was screwed up Drowned million times So I tried to sneak To see who's at outside As I glanced my eyes Saw plain greenfields Then something just bumped Outside the window So much surprised! To see who was there Oh there's my friend! Scared me that much