Before Groot was the gentle giant fans know and love today, he was a monster. Literally. A 125-foot-tall, rampaging alien monster. He stayed that way for 45 years, too, until a sudden and unexpected turn transformed him into a hero and paved the way for his membership in the Guardians of the Galaxy. But during his five decades as a villain, Groot caused quite a few problems — and, honestly, that didn’t really stop when he became a good guy. As one of Marvel’s monsters, Groot terrified countless humans. As a hero, he’s always in danger of returning to his villainous, uh, roots. Here are just a few of the ways Groot has terrorized the Marvel Universe…

[Looper]