Cat is 14 . She has a cat flap to go out and has always gone outside. We've never had a litter tray for her .
In winter she has sporadically peed on the bathroom mat....we always keep the door shut now and she doesn't pee any where else.
Woke up this morning to find she has shit in my lovely rug. To make matters worse it was dark and I trod in it 
Is she just getting lazy? I can't put up with this on a regular basis.