This is a fun topic! My dad used to fish Gilmore Lake near Minong back in the '50s and '60s with one of his buddies. They found a dead walleye along the shore with a big bullhead lodged in its gullet. The walleye was over 30" and while they did not weigh it - I recall that it was pretty nasty when they found it -- they guesstimated its weight at 12#.
One of my buddies caught a northern from a quarry in Thiensvile that we used to fish a lot. He had caught a 4 inch bullhead and was dragging it in when the northern grabbed it. Bullhead and northern pulled up on shore in one motion.
Finally, I fished on Lake Springfield in central Illinois with a buddy who insisted that the bass there never took spinnerbaits. That was backed up by him and the members of his club. I did catch a bunch of bass on a tube jig but nothing on a spinnerbait - I tried it just to prove him wrong but nope!