Ah, good to be back.
Nice to see some expert validation of the views of a minority here who have it right!
I think this makes sense. Some may argue that the shock and awe of an initial stab would would leave the victim unable to respond. Such a situation would immediately trigger the fight or flight reaction (autonomic response of the sympathetic nervous system), and the victim will be fighting back vigorously for his life until blood loss would make this difficult.
This. And I'm guessing ER docs weren't rushing to their computers afterword to write up these cases for publication in medical journals, as, sadly, they are neither particularly rare or novel.
Dave