For several months, I noticed that my MacBook Pro made weird hissing and clicking sounds in the morning. That’s bad, I thought, and I checked to be sure my backups were OK.

But other than that, I didn’t think about it. The sounds only lasted a second or two and only happened once or twice in the morning.

Recently, I realized the MacBook Pro wasn’t making the noise. It was my insulated coffee carafe, which rests next to the MBP when I’m having coffee at my desk in the morning.

Mitch W @MitchW