The day after Bonfire Night teacher asks the class what they did to celebrate.
Little Jane sticks her hand up and says "Well Miss, my dad made a big bonfire adn we had lots of sparklers and rockets!"
"Well done!" says the teacher.
Little Johnny sticks his hand up and said: "My dad stuck a banger up a dog's arse!"
Horrified the teacher shouts "Rectum Johnny!"
Johnny replies "Rectum? You're not kidding it blew it to fuckin' bits!"