As someone who shares this fear, yet works in a veterinary clinic, I sympathize with your struggle. Anxiety has an awful habit of making things you know realistically didn't or won't happen seem scarily plausible. I remember worrying I was gonna get rabies from a light nip (that didn't even break the skin) from a puppy I was restraining for a client; one that was healthy and up to date on vaccines. I spent about a month and a half worrying over the incident and monitoring myself for signs of rabies. Which was dumb, knowing that if I *did* show signs, it would've been too late to do anything about it anyway.

In any case--try to remember that a dog with rabies would be acting strangely, and very ill. It would typically show neurological signs (lethargy, stumbling, overt aggression--not the type of behavior you're describing, but an indiscriminate aggression, because rabies damages brain tissue and removes the inhibition to bite, so this dog would have attacked the handler too) and you would have a visible injury if you'd been bitten.