Do you hear that?

UH, SIR, WHAT'S THAT BEEPING SOUND IN THE BACKGROUND? I don't hear any beeping...SIR, YOUR COMPUTER OR YOUR UPS IS BEEPING...I don't hear anything beeping, SIR, WHAT DO YOU SEE ON YOUR COMPUTER SCREEN RIGHT NOW, it says it can't detect the hard drive, OKAY, CAN YOU POWER IT OFF USING THE BUTTON, (as customer leans over to power off) oh, I hear the computer beeping, UH, YEAH, I KNOW.