I would defend my family to the death but a parking space nahhh i'd give it to them and then let there tyres down.
seriously even on the school run i get evil looks and when i ask i get " thats my spot i park there every morning".
they all need to be there 2 mins faster than you park 50 ft closer to the supermarket than you .
they should all chill out and be more courtious just think about it.. you have the space .. no you have it... i said it first.. so what? are you starting trouble