Harry Potter Theory: Was Percy Weasley Under the Imperius Curse?

Today J dives into one of the more unusual cases in the Weasley Household: Percy. From the beginning Percy seemed to kind of walk to the beat of his own drum when compared with the family. He has always been a fierce stickler for the rules but is eventually so misguided that he becomes estranged from his family. Could it be that Parnsip Wallenby was actually under the Imperious curse the whole time?! (Or at least part of it?!)