joys of aging

Me, on video chat with my grandpa: What's that sound? Can you turn it off, please, it's really getting on my nerves!

Him: Huh? Alright... *starts shuffling with the computer* I'll turn the sound off. Do you hear it?

Me: No! Don't turn the sound off on YOUR computer!

Him, as the annoying sound keeps going off: What are you saying? I can't hear you!