Agree with you fellas on the whole.
BUT...there's always the absolute limit, the static rollover angle, where the aircraft will roll over if tipped past that point (ie a couple of robust young men decide to see if they can tip over a jet ranger).
I can't believe there isn't some sort of slope landing limit (not sure I agree that its something that doesn't apply to a teetering head)...obviously the limit of the controls is the major factor...but most aircraft I've flown have a limit which keeps dolts like me from getting too close to the ABSOLUTE limit (whatever it may be) and tipping the old girl over by accident.
HP