Why Harry is an insanely funny bastard:

 

• ‘There’s no need to call me sir, Professor.’
• ‘Wow, I wonder what it’d be like to have a difficult life?’
• [‘Listening to the news! Again?’] ‘Well, it changes every day, you see.’
• ‘Yeah, Quirrell was a great teacher. There was just that minor drawback of him having Lord Voldemort sticking out the back of his head!’
• ‘Have you ever let it slip that you’d like to go out in public with the words My Sweetheart round your neck?’
• ‘This is night, Diddykins. That’s what we call it when it goes all dark like this.’

Found HERE