I left My dog at my Neihbors and-?

Unfortunately this is something most animals don't get used to; they rely on their owners and become attached to us just like we do. There are some things you can do to help, depending on the size of your dog, buy them a big bone or pigs ear that will last a couple of days. Give it to your dog right before you leave and they will never even know you left, toys and treats are a good way to get them accustom to you being gone or the sense of you "leaving."