Loved the advice on the last word thing, didn't quite think about it! Another thing that may make your dog bark, is that if you go and make your usual "going for a walk routine", but instead of opening the door and going out, tie your dog to the door. Drives most dogs crazy . I won't be teaching my dog to bark on cue while I'm living in an apartment though . Just to be on the safe side, since my dog rarely barks right now!