PIS = "plot-induced stupidity"
In SENTIMENTAL SWORDSMAN, RUTHLESS SWORD, Seung Gwoon Gum Hung lost to Lee Chum Foon only because the former stupidly (in an act of ultimate PIS) left himself wide open to attack by Lee's dagger.
What if SGGH was not subject to such PIS, but had to take Lee Chum Foon and Ah Fei (at full strength) on simultaneously? Could he take them both at the same time?