Or, at the outbreak of plague, social unrest, international hostility, a line of military trucks arrives in the village and off loads a couple of thousand urbanites as part of the planned evacuation scheme.
Suddenly, instead of the "big die off" one is facing an explosion of population density in the rural area!
GB has a history of this effort.
And do note that the evacuation scheme was passed on one day and put into effect the next day, which was two days prior to the declaration of war.
http://en.wikipedia.org/wiki/Evacuations...rld_War_II
"Just a few"
NOPE!!
1/3 of the population was evacuated or had evacuees placed in their homes.
YES! The law required that you take them in.