True - and that depends on the types of emergencies you'll be facing. But it's better to start small and work your way up.

Plus, toilet water doesn't need to be disinfected. Just a reminder for those that might not think it through...

oh - and you might want to make sure you've always got an adequate stock of the OC or other BC method laying about. One wouldn't want to be partway through a non-ending emergency and find out that another mouth is on the way.

Especially considering that there might not be much else to do for "entertainment".