Dani,
Sorry I missed yours as well. Somewhere back in the distant history of this thread it was mentioned (possibly by me but it was months ago and I can't be bothered to look) that the Q400 is not susceptable to tail plane stalls.
The powered elevator means that if the tailplane stalls (and Transport Canada required Bombardier to prove that it doesn't) the elevator cannot be sucked down so the control column won't move forward. One of Bombardiers flight test pilots gave an excellent post on here about how the certification air testing was carried out.
It even used to tell you in the AFM that the aircraft was not susceptable to tailplane stalls, and that was written 10 tears ago.