It's a little-known bit of movie trivia that Vincent Larusso, who played Adam Banks in the Mighty Ducks movies, was not the original Cake-eater.
In 2014, Time Magazine did an oral history of the movie(for some reason). In it, producer Jordan Kerner dropped this nugget:
We tried to have the meetings with all the parents and guardians once a week, twice a week, three times a week depending. At some point, I brought everybody together and said, "There’s been an incident today, and the people involved with it know who they are. Here’s the deal: If it happens again, you don’t need to come to me, okay? You can just go back to your hotel. The production will already have your return plane tickets there, and we will make adjustments." And literally four days later it happened again and I called the mom and said, "You and So-and-so, you’re going home."
After that actor was fired, Larusso, who had been a background character, was recast in the role of Banks and the rest is history.
But what were those incidents that got the original Adam Banks fired? Twenty-two years later, Mighty Ducks podcast Quack Attack Pod--which is a real thing, and is awesome--has gotten to the bottom of the story.
The Quack Attack interviewed Jack White, who served as the technical advisor and trainer on the film. White spilled the beans on what those two incidents were.
The first came during a training session with Eric Strobel, who won a national title with the University of Minnesota in 1979 and was a member of the 1980 US Olympic team. While playing a fun game where Strobel would try to hit the kids with a puck in the skates. Original Banks(who is never named to protect his reputation), apparently didn't care for it, because he ended up taking a shot that hit Strobel in the chest.
Four days later, he cross-checked Marguerite Moreau, who played Connie Moreau in the movie, in the back, and that was apparently the end of his stint as Adam Banks.
The whole interview with White is a good one and worth a listen.