Thanks for the responses. There is no doubt that they are smart enough to pick up on patterns and they become used to things that they like and expect.. My guys will, for example wait by the pantry at a certain time in the evening after their dinner for a nite time greenie snack. You cant try and skip a night, because they dont forget! But in this case, it seemed very strange to me that they would have made the association because I only go on travel maybe once a month, and sometimes even less often. I cant figure out why our boy was so freaked out, but I agree with trying to get him used to the bag so he loses the association, if he actually made it; it cant hurt. When one of us is gone, they wait by the door for a couple of days until the pack is back together.... So sad! But you have to bring home the kibbles
