What could be worse than opening your door to an unexpected house guest? Probably opening the door to five unexpected guests asking to spend the night due to an emergency? And then you remember, you have only enough food for your own family for the day since grocery day is tomorrow yet. These are the times you wish there is a courteous way of turning away visitors on your doorstep. But alas, there is none.
The only way not to encounter this potentially embarrassing situation is to be ready for guests at all times.