one's doing(Since the proposal was Evgeny's doing, his new fiancée was seemingly given a proverbial slap on the wrist in the form of an $11 fine.coasttocoastam.comART Vancouver)
one's doing(The disappearance of the monolith was later confirmed by the Bureau of Land Management, who indicated that it was not their doing. – это не их рук делоcoasttocoastam.comART Vancouver)