I had to put a dog down for aggression after a rabies vaccine. :( He
was a GREAT dog until that vaccine. He attacked three people after
that... my husband, my best friend's son and his favorite handler at
doggie daycare. I had to put him down about two weeks after the vax.
Of course, yet another thing that added fuel to the fire in my world
that made me research the vaccine thing hard before I had kids.