Although David Lewis advocates a counterpart-theoretic treatment of objects but rejects a parallel treatment of events, many philosophers have — mainly to solve some puzzles within the framework of a Lewisian counterfactual analysis of causation — suggested that the counterpart-theoretic treatment be extended to events. This article argues that we had better not be a counterpart theorist of events as long as we want to remain at all faithful to the counterfactual analysis of causation.