Every time I see a dog off leash, I just want to yell at the owner! One day I was walking Sadie, and she was on a leash, and then this really sweet Boxer came running twards us, and Sadie started to pull really hard, and I got this big blister on my hand. I really blamed it on Sadie, because she was the one who was pulling so hard! I didn't take her for another walk for like, 2 weeks!!! I know the Boxer, and she's a sweetheart! That explains why dogs should ALWAYS be on a leash! Dogs, and people for that matter, could get hurt if a dog that's not on a leash starts to charge at them. I'm sooo glad sweet little Paula didn't run away from you! Your story should've been a good lesson for the GSD's owner!