I have been fishing for bluefish and had the other bluefish in the school hit on the one I was catching.
When they come thrashing to the top they will bite anything.
I was fighting a 2-3 pound bluefish in the surf a couple of years ago when there was an extra hard lunge at the other end, followed by no more resistance. I reeled in half a bluefish. Never saw the shark (I’m assuming it wasn’t another blue).
I got one blue before work this morning, and another at lunch.
I live in CT, where are you? Bluefish are a ton of fun, and a hell of a workout.