dogs in training

in norway, where one might occasionally meet a bear, hunting dogs are tested against this rather cozy brown fellow. as is evident, many of them are hesitant about the furry fellow.

the problem with dog dangers -- as seen by us and by them -- is that they can appear infrequently and unpredictably, so that there's often no time to get the dog used to them (if it's not really a threat) or taught to avoid them (if it is). where, for instance, can i get a steady supply of model planes or passing hot air balloons? and why do the dogs Sam is scared of always appear when i have little or no treats to distract him with?

perhaps i should construct some cats and dogs on wheels, after all. but wheely flying machines?