 It may not be for a short period. It may be for a longer period. If you build it up gradually and you build up that dog's self-esteem and that confidence, you'll start noticing that the dogs will be absolutely fine. My two guys, Molly and Willie, who I adopted from a high-kill shelter in Southern California, I don't know how many homes they might have had. But it took Denise and myself a fair amount of time where they know that every time we leave, we're coming back to them.