I have the same thing with a dog I'm fostering. She's deathly afraid of the mower and storms. With storms, she either runs in the bathroom or under the bed. With the mower, she runs from room to room. The really dangerous part is this - for the entire day that the storm occurred or the mower was on, she is not right. As a matter of fact, the mower was done and two hours later, she tried to get under my legs as I was going out the front door. She almost got out. She never does that on an ordinary day - just when she's spooked that day. I am afraid to adopt her out like this. Some people aren't as careful and she may slip under their legs. I'm not sure if anything can be done about this either, but if anyone has any advice, it would be appreciated.