A boy is asked if he knows the first 4 letters of the alphabet...

So, he goes home and asks his mum what the first letter of the alphabet is - her reply being:

***"Shut up!"***

He later visits his brother, who is watching batman, and asks him what the second letter is.

***"NANANANANANANANANANANANANANANANANANANANANANA BATMAN!"***

After that, he asks his dart-player-dad what the third is. He yells:

***"180!"***

For some reason, he then thinks that his little sister might know the 4th:

***IN MY LITTLE-RED NODDY-CAR BEEPBEEP***

So, the next day, he tells his teacher that he knows the first **4** letters of the alphabet! So she asks what they are.

***"SHUT UP!"***

***"I'm sorry mister, who exactly do you think you are?"***

***"NANANANANANANANANANANANANANANANANANANANANANA BATMAN!"***

***"Tell me, how many detentions do you want?"***

***"180!"***

***"How do you think you will get away with this?"***

***"IN MY LITTLE-RED NODDY-CAR BEEPBEEP!"***