Why the sitter's visitors are the weak point
You chose your sitter carefully. You did not choose their friends, partner, family members or the delivery driver they hold the door open for — and those people do not know that your dog darts for open doors, slips a loose collar, guards his bowl, or must not be fed from the table. Most incidents while owners are away are not the sitter's carelessness but a visitor's ordinary behaviour: a front door left ajar while bags come in, a gate unlatched after a garden visit, a well-meaning guest taking the dog into the front garden or offering him rich party food. Planning for visitors is therefore the core of a safe sitting arrangement, not an insult to your sitter.
Agree the visitor rules before you travel
Talk through visitors explicitly and write down what you agree. Sensible rules for most dogs: visitors are welcome in agreed rooms, with your dog's sleeping room kept as his retreat; nobody except the sitter feeds, walks or lets the dog out; the front door and garden gate are pulled shut and checked after every arrival and departure; your dog is never left alone with visitors, and is settled in his own room with the door closed during parties or large gatherings. Agree a simple plan for numbers too — a quiet friend staying over is different from a houseful, and your sitter should know you expect a message before the second kind happens.
Walk the house together with these rules in mind. Show the sitter which doors stick, which gate latch needs lifting, where the lead, torch and treats live, and demonstrate your dog's actual escape routes, because a dog who has twice slipped through the utility room will try it again for a stranger.
Hand over handling knowledge, not just feeding times
A good handover covers how your dog behaves with strangers in his home: whether he greets at the door or should be put behind a gate first, what makes him anxious, how he is with children, and what to do if he growls or hides — namely, give him space and message you, not reassure him into more contact. Leave your veterinarian's details, your own contact route, and a trusted neighbour's number, plus clear guidance on what counts as urgent enough to call you immediately.
Meet-and-greet timing matters. Your dog should meet the sitter, and ideally any partner who will be a regular presence, while you are still home, so the first arrivals after you leave are familiar people rather than a stranger letting themselves in with a key.
While you are away, and if something goes wrong
Ask for a brief daily update with a photo, and make it easy for your sitter to tell you about problems early — a sitter who fears your reaction hides the chewed door or the near-escape you most need to hear about. If your dog does get out while visitors are present, your sitter should search the immediate area, alert neighbours, and contact you at once rather than spending an hour hoping he returns before you find out.
Clear written access to the essentials prevents confusion when several people are involved, and a KinsLe Care Pass is built for exactly that handover, giving your sitter temporary, clear access to your dog's routine and key details to share with anyone helping while you are away.