can't happen = C = Cancelmoose[tm]

cancelbot /kan'sel-bot/

[Usenet: compound, cancel + robot] 1. Mythically, a robocanceller 2. In reality, most cancelbots are manually operated by being fed lists of spam message IDs.

--The Jargon File version 4.3.1, ed. ESR, autonoded by rescdsk.