Yeah hiding in a house is setting oneself up for a death trap. The best bet is to keep moving, like one tries to do when trying to avoid an Obama volunteer. If you think about it, the military could coral all the zombies like cattle in one place then just napalm the crap out of them. Probably actual cowboys could do it even. I live that movie 28 days because that is a more believable situation where a virus causes people to go insane and the “zombies” run at full speed.
28 days later is the most plausible of the zombie scenarios. It also deals pretty realisticly with how women would fare in such a scenario. The army unit, all male, survived, and went looking for women to provide "comfort". The lead male had to kill all the army guys to rescue the women.