Gizmo has always been a bit of a chicken dog. he jumps at sudden noises, runs away from the vacumn cleaner, unusual looking items and i think is paranoid to stick his face into holes (chips packet, his snack container.. etc). we also just found out that he is afraid of the 'pop' from bubble wrap -_-. well it is the bigger ones which have a louder 'pop'. look where he went into hiding.