Dinner conversation

Part of conversation at dinner last night:

J: 'Is G-I-T a swear word?'
Dad: 'No, it's not a swear word but it's not nice to call somebody a git'.
J: 'My Maths teacher called someone a git'.
Mum (shocked): 'Who did she call a git?'
J: 'The minister for education'.
Mum & Dad: 'Hmmm'.