Before administering any painful procedure, doctors talk to their patients with a careful balance of candour and tact. Too graphic a warning might trigger refusal to cooperate, but pretending something won’t hurt is a betrayal of trust.
Politicians face the same dilemma with painful reforms. Speak too frankly and you spook the electorate. Deny the scale of a task and you have no mandate. This is especially tricky for opposition leaders who want voters to feel upbeat about the future under a changed regime. Itemising pain kills the buzz.