???? Yeah, i don't remember that one either. Sounds like a great recipe for an inverted flat-spin.

Get a new CFI. If I knew that someone was doing something like this I would have a serious talk with the guy, and if he didn't see the light I'd go to the FSDO.

NOTE: Your cfi may have been talking about the Vmc demo...in many light twins the operating engine cannot generate enough power to actually Vmc when doing the demo at altitude...in this case you would get stall indications before Vmc and recover immediately before entering a stall, IIRC