Litter box.

[MWB]

I have a litter box as I have a kitten.

The other cats all have collars with magnets to get in & out the cat door. The baby will have one as soon as she's big enough.

Thing is, one of the cats comes IN the house to use said litter box then goes out again!

[Naomicorlett]

Got you trained then !!

[paraffin]

MWB:

That might not be a bad thing as it might reinforce the message to the little kitty that using the litter tray is a good thing. Who knows, your adult cat may be trying to give the little 'un that exact kind of message?

[pastafreak]

Cats are somewhat more clever than they look...!

[kippyboo]

I think said cat feels his nose is pushed out , ummmmph little squirt of a newcomer has his own en-suite "what a f@cking liberty" I'll show him!!!

[momac]

Guess what?my cat always comes in to go on his litter tray,he's just turned fifteen so I don't think things will change now.