A small boy is sent to bed by his father. Five minutes later: "Da-ad..." 
"What?" "I'm thirsty. Can you bring me a drink of water?"
"No. You had your chance. Lights out."
Five minutes later: "Da-aaaad..." "WHAT?" "I'm THIRSTY...Can I have a 
drink of water??" "I told you NO! If you ask again I'll have to spank 
you!!"
Five minutes later... "Daaaa-aaaad..." "WHAT??!!" "When you come in to 
spank me, can you bring me a drink of water?"