These questions are often unanswerable since the actual triggers for most of these activities are going to vary.
Why is my dog afraid of other dogs? There are hundreds of potential reasons for this and with out being able to know a whole lot more about the dog there is no way to know for sure.
Why is my cat so interested in me making the bed? - Who knows maybe it just likes to watch you make it, maybe its a signal that you are going to leave for the day, maybe it is waiting because you usually feed it after you make the bed. Maybe it thought it saw something to play with come out when you were making it one day and now hopes to see it again. And there are hundreds of more potential reasons. We can not really know this and even if we do know it the answer is not terribly helpful.
Most of these types questions should be savable by asking how to correct it, and possibly if it is a behavior that should be corrected. But I am thinking that it might be helpful to add something about this to the help center.
Other wise if we ask why does my dog bark? That is a guessing game or a dart board and is not likely to be helpful.