My 90 lb GSD wound up with 12 staples in a hind foot years back when a Jack Russel terrier attacked him at a dog beach in Chicago.
He is very good with dogs in general, even teensy toy dogs like baby Bostons and Shih Tzus, but he does not like Jacks at all.
I played this and he half climbed in my lap so he could growl and snarl at the screen on the laptop!