Mine was afraid of everything
when we first got her as a puppy due to a rough start at the shelter (including being beaten up by the mother of another litter at about 9 weeks old). It took a lot of work, but now she's only scared of crowds (like at a festival), "gangs" of dogs (in her mind, more than 1 is a gang!
) and large holes in the ground that make a lot of noise (open manholes, openings on a small ferry boat, etc). She keeps things interesting, for sure, but she's come a long way!