Caring for another pet parent's pets requires an understandable level of trust. If someone was caring for my pet in my home, there would have to be a VERY DEEP level of trust between myself, my pets, and those who I am considering entrusting my pet's life or lives with. A pet's comfort and safety is TOP priority! A pet's comfort to me looks like, keeping their routines that they may already have with their parent such as walks, eating, play time, potty breaks, and naps or a natural sleep schedule. Keeping the environment as close to typical is a great way to help prevent stress on them. Their routines could also include grooming! After all, who doesn't love the feeling of being pampered haha. Pet safety is of the utmost importance because a life or lives are in your hands. Safety to me begins at the meet and greet. Displaying appropriate body language and being able to read a pet's body language is very important. If pets are meeting new pets, situational awareness is a must! At the point everyone has established trust, and care is able to be provided, safety takes on a new meaning. It means following dietary guidelines from the pet parent. It means being situationally aware of the pet's surroundings both in their home and if they're out of the house walking, playing, etc.. At this point, my mindset is, "This is my fur baby and I will protect them at all costs!" and I treat them as such.