Greybeard who had been carefully investigating the dumpsters out back, came running around the building, and saw his temporary master yelling and fighting some men. His old Police dog training kicked in and he high tailed for the scrum.
He launches himself at the thug fighting Tommy jumping over Shanes prone form.
Exploding die (1d10=6, 1d10=1, 1d10=6)
(6 successes...If he makes his perception the last two die don't count so 5 successes)