  Switch seems to be a case where the bad outcome is foreseen, but not intended. Bridge seems to be a case where the bad outcome is intended as a means of saving the five. So one way to explain the different intuitions in Switch and Bridge is with reference to the doctrine of double effect. But this explanation is unsettled by a variant of Switch, according to which the large man is on the spur track, and that track now loops back onto the main one. Here it looks like by pulling the lever we would be using the large man merely as a means to saving the five, for unless he stops the trolley it will loop round and kill the five from the other direction. But it still seems permissible to pull the lever, yet wrong to push the man off the bridge.