Hey Silver,
Thanks so much for all the feedback and help! The zombies getting through the gate will be fixed soon, I tried making the doors stiffen up and close when they touch it but it wasen't enough of a fix.
The Herd does attack while you're outside no matter where you are, Upgrading the house gets you more time between herds. If you set the difficulty to easy you also get more time.
Could you give me some details on the drunk? I'll try it out too and see if it happens to me,
Rafi