I've gotten accustomed to growling just recently, since when in charge of a bunch of kids I tend to get at least a little angry.

Also I start growling when people in school keep pulling my tail/lanyard.
*Notices Sable behind Taco*
Oh! New Doggie!
*glomps Sable*
I've always loved German Shepards. Siberian Huskys and them are my favorite dogs