If the worst qualities of the British are pastiched in the zombies, then all that's great about my compatriots was fondly celebrated in the response to them.
This wasn't the stilted cliche of Britons under siege. It was much more realistic than that.
Our protagonists reacted with understatement, humor, ridicule, disdain, stupidity, resourcefulness, low-level panic and a constant regard for what everyone else might be thinking.
(Though the streets are covered in brain-eating baddies, we do have to be careful not to step outside too many social conventions. Even more so in such unusual circumstances as the zombie apocalypse.
Forget the horrors of decomposing figures trying to devour us, most Britons would be more scared by the fact there's no established precedent for how we're supposed to react! Fortunately there's always the Blitz Spirit to default to in an emergency. And tea. And beer.)
I spent most of the film laughing aloud, because I could identify with it all. At each new development, I kept thinking, 'Oh my God! Yes! That's precisely what would happen! Yes! And that too!'
I'm not used to that. Usually if zombies are invading, they're doing it in America, where the culture is just different enough for me to not quite relate. Or else it's dark and gritty, a la 28 Days Later or In the Flesh. The very unexpectedness of US style zombie hordes in British buildings made it both surreal and hilarious.
I particularly enjoyed the array of improvised weaponry. Britons can't reach for the gun cabinet, as we generally manage to do without them. Hence our heroes made do with whatever presented itself at the time.
Shaun charging out with a cricket bat in his hand was perfect on so many levels. Ed's spade wasn't bad; the Molotov Cocktail was better. I'm not too sure about David and Diane opting for brollies. Though I guess the effectiveness there would depend on the angle and the swing. Liz's hockey stick was a triumph! But the less said about Barbara's bouquet the better. What was she going to do? Petal them to death?
They all change their choice of arms so often. A really enjoyable watching of Shaun of the Dead might be spent blithely assessing each item in their arsenal. Just to work out which, if any, would be fit for purpose in a zombie stand-off situation.
Then look around your own room and tell me what you'd grab!