If someone locked us in our house now for 2 weeks we'd naturally have enough food etc to live on with no need to get extra.
The only problem is we'd have to eat those tins of lentils, indian tomatoes, dried apricots etc that we have but never get around to using.
The beer may run out but the wine should last. Worst case we need to drink the cranberry juice thats maybe 2 years old.
Toilet paper may need to be rationed , but theres always newspaper or leaves!