Glass of Water 

A small girl is sent to bed by her father. Five minutes later, the small one called for her father, "Da-ad..."

"What?"

"I'm thirsty. Can you bring me a glass of water?"

"No. You had your chance. Lights out."

Five minutes later, the small girl called again, "Da-aaaad..."

"WHAT?"

"I'm THIRSTY... Can I have a glass of water?"

"I told you NO! If you ask again, I'm gonna spank you!"

Five minutes later, the small girl called again, "Daaaa-aaaad..."

"WHAT!"

"When you come in to spank me, can you bring me a glass of water?"