Not only does this come from their previous families, but also because animal shelters take extra good care of their senior dogs and train them if there are any problems in behavior. (topdogtips.com)
I can relate to much of this as I also have a constitution and an illness that requires me to take extra good care of myself. (deliciouslyella.com)
But if you keep your prices reasonable and become known for taking extra good care of the boats you transport, you may find people hiring you to take care of this for them anyway. (entrepreneur.com)