Ooo I had an alligator snapping turtle as a kiddo. Found as a hatchling in a culvert, kept for a good 6mo until he became too much to handle. During that time, he ate dozens of minnows, a dozen or two goldfish, and snapped a wooden mixing spoon in half. He was maybe 4" shell length, 8" fully outstretched nose to tail tip. That was around the time we set him free.
Tried to take him to the Dallas Aquarium to see if they wanted him, they showed us this big bastard they have:
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Make no mistake, he could and would eat that little shit.