An Alarming Lack Of Observation Skills

(I work in a supermarket on the stock side which involves a lot of time using a computer near the checkouts. One day, when I’m stood there I can hear a loud beeping noise but can’t work out where it is coming from. I start moving around listening to the computer, printers, etc., to work it out. Then, a team leader comes over.)

Team Leader: “Hey, [My Name], what are you doing?”

Me: “There’s a beeping and I can’t work out why.”

Team Leader: “Umm, [My Name], did you not think it could be the alarm clock on the desk right in front of you?”

Me: “We have an alarm clock?”