I've had dogs just about all my life, and I've been pet sitting since I was 10 years old. I am not a squeamish person, and in my opinion dogs are basically perfect. To be able to get to hang out and meet with as many dogs as possible legitimately sounds like a dream come true. I have experience with big and little dogs, and dogs of just about every age. My family dog is an 18 year old German shepherd mutt, currently living with my parents and their other two dogs, and we've had him for a long time. I've pet sat puppies, "toddler" dogs, and old dogs who require medication and special care.