Punish Your Opponents for Their Mistakes

You reach a contract of 4S on the following cards:

xxx
KT8x
xx
QJxx

AKQJ9
xx
Ax
ATxx

West Pass 3 Pass

North Pass Pass 4

East 1 Pass All pass

South X 3

Your LHO leads the Q and your RHO plays the K for some reason. Can you punish him for his indiscretion?

Solution