Aoshi

Aoshi makes a split second decision on the intentions of the fleeing man.
Sense Motive (1d20+8)[25] and if he is indeed fleeing rather than getting his captain (or if I really blow this roll) Aoshi's blade flickers out of the scabard and slashed down on the man attempting to hamstring him. (don't have the feat so apply whatever appropriate penalties you want for a called shot type thing.)

Attack [1d20+10]
Damage [1d10+7]