Your sound card is defective

Customer: “Your sound card is defective and I want a new one.”
Tech Support: “What seems to be the problem?” Customer: “The balance is
backwards. The left channel is coming out Of the right speaker and the right
channel is coming out the left. It’s defective.” Tech Support: “You can solve
the problem by moving the left speaker to the right side of the machine and vice
versa.”
Customer: (sputter) (click)
Tech Support: (snicker)

Your sound card is defective