Yes,this is all true and logical.But imagine this....you're Hitler and the Russians are closing in....or,you're Goering and you're to be hanged in the morning (remember that Goering took the "easy' way...or the coward's way...out).Or you're on the 105th floor of the WTC North Tower hanging out the window....
And I'm not even mentioning having some slowly growing,incurable cancer and the doctors say that it's the type for which pain meds don't work (if there is such a cancer).
So,yes,what you're saying is true and logical in most (99%?) of cases.