@Linda108
Ha, ha. My mother-in-law's phrase, after translation from Japanese. And she's 92 and a half. Seen it all.
But seriously, think this way and you'll be safe. I suggest looking at plumbing first - the way the toilet works. The flush handle
ought to be robust, not delicate. Have a plunger handy. Have a handy bucket for any toss-away paper of any kind, especially
one labelled 'napkins', even with an inviting cartoon character face and open mouth (great idea, by the way). The shower
and bath should be sturdy nechanical, not with electric hi-tech buttons (they'll get hammered by Australians). Simple is always best.
There should be overflow drains. Lights! I changed all bathroom and toilet light and fan switches to 20-minute and 40-minute timed
automatically 'off' buttons. Previously, these were left on all night. Most importantly, invest in strong low-consumption air-conditioning units, especially if they can automatically time-out after 4 hours or so. That not saves big on electricity bills. And never ever have
any portable radiant heaters. Not idiot-proof. Very dangerous. The list goes on and on.... imbeciles are everywhere. Call them
'Zombies in Wonderland'. Happy hosting!
Almost forgot. Our lifesaver: a mandatory once a day security check. the same as housekeeping in a hotel.