A carer who is already standing in for someone else
A home caring for a cat temporarily for a deployed owner is doing a particular kind of favour: the carer follows another owner's instructions, often with limited ability to reach that owner quickly, and may be doing so for months. Adding your cat for a week asks that same carer to run two cats' routines, remember which instructions belong to which animal, and keep two owners' expectations separate. Preparation should make that separation effortless. Label everything you send with your cat's name, keep your paperwork in its own folder, and never assume the deployed owner's arrangements, vet, or food choices apply to your cat.
Keeping two cats' lives from blurring together
Ask how the deployed owner's cat lives in the house: which rooms it uses, where it eats, whether it goes outdoors, and how it reacts to other cats. Your cat needs its own tray, bowls, bedding, and scratching provision, ideally starting in a separate room, because sharing core resources with an established temporary resident is the fastest route to guarding, avoidance, and litter problems. If the two cats will meet, plan the same gradual scent-first introduction you would use anywhere, with the added wrinkle that the resident temporary cat may already feel unsettled by its owner's absence. A cat who has lost its owner to deployment and then loses its favourite room to your visitor is being asked to absorb a great deal at once.
Vet decisions when owners are hard to reach
Deployment makes emergency authority a live issue in this household, and your cat's week should not inherit that uncertainty. Leave your own written permission for the carer to seek veterinary care for your cat, your vet's details, a second contact who can reach you, and guidance on how you want to be updated if treatment is needed. Be explicit that this permission covers your cat only, just as the deployed owner's instructions cover theirs, so the carer is never left guessing which set of wishes applies at a stressful moment. Include microchip details and vaccination proof for your cat in your folder, and confirm the carer knows which carrier belongs to which cat if both animals ever need transporting.
Routines, updates, and the return handover
Write your cat's routine as a simple daily list the carer can pin beside the other cat's list: feeding times and amounts, tray cleaning, play, and any handling limits. Keep your requested updates modest, because this carer may also be sending updates to a deployed owner in another time zone, and agree a single daily message covering eating, tray use, and general demeanour. Pack food for the week plus a spare day in case your return slips. At collection, ask for a proper debrief: appetite through the week, any scuffles with the other cat, any vomiting, hiding, or tray changes, and anything the carer noticed that you should watch at home. If your cat stops eating, is injured in a fight, or shows breathing difficulty or repeated vomiting, the carer should contact a vet promptly rather than trying to reach you first.
Making your cat the easy guest in a borrowed routine
The kindest preparation respects that this household is already performing one act of care and is now adding yours. Everything labelled, everything written down, and no midweek changes sent by message unless they are urgent. Using KinsLe Care Pass, you can pass the carer temporary access to your cat's feeding routine, vet details, and emergency contacts as a self-contained set, kept clearly apart from the deployed owner's cat's information.