Without a doubt, go for this one! 
The Grumpy Teacher
What shall we do with the grumpy teacher?
What shall we do with the grumpy teacher?
What shall we do with the grumpy teacher?
Early in the morning!
Hide some sharp pins under her chair,
Put some blu-tac in her hair,
Ha, ha, ha, ha, we don’t care!
Early in the morning!
Don’t put us in detention,
We just want some more attention,
We just don’t deserve suspension,
Early in the morning!
What shall we do with the grumpy teacher? x3
Early in the morning!
Dig a deep hole and push him in,
Make him eat lunch in a rubbish bin,
Get a big knife and shave his chin,
Early in the morning!
Don’t tell my mum about me,
She will get very angry,
Stop me from playing Wii,
Early in the morning!
What shall we do with the grumpy teacher? x3
Early in the morning!
Leave her in a cage at the zoo,
Make her take a bath in sticky glue,
Take her back to school to SHOUT at you,
Early in the morning!
What shall we do with the grumpy teacher x3
Early in the morning.
Hang her on the hook behind the classroom door
Tie her up and leave her in the P.E. store
Make her be with Dereck Drew for ever more
Early in the morning
Please Miss we're only joking.
Don't mean to be provoking
How come your ears are smoking
Early in the morning.
What shall we do with the grumpy teacher? x3
Early in the morning.
Send him out to duty when the sleet is sleeting
Keep him after school to take a parents meeting.
Stand him in the hall to watch the children eating.
Early in the morning.
Please sir we're only teasing.
Don't mean to be displeasing.
Help that's our necks your squeezing.
Early in the morning.
What shall we do with the grumpy teacher? x3
Early in the morning?
Tickle her toes with a hairy creature,
Leave her in the jungle where the ants can reach her.
BRING HER BACK ALIVE TO BE A CLASSROOM TEACHER!
Early - in the - morning!