A small boy is sent to bed by his father. Five minutes later:

‘Da-ad…’

‘What?’

‘I’m thirsty. Can you bring me a glass of water?’

‘No. You had your chance. Lights out.’

Five minutes later: ‘Da-aaaad…’

‘WHAT?’

‘I’m THIRSTY…Can I have a glass 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 glass of water?