Angus, the silky terroist, is very afraid of storms and will even get nervous if it starts to rain hard. The strange thing is : he is 6years old and around 3 years ago, we were at my inlaws house and they have a dashound who was afraid of storms. At this tiime, Angus was not afraid. After that day in which they were in the same house together during the bad storm, Angus has been afraid.
I guess he just thought that if Rusty was afraid then he should be too.