How do you stop a colleague from whistling, singing, and talking to himself? It’s annoying, and I can’t hear what I’m doing on the phone. I’ve tried joking, I’ve tried coughing loudly, but he doesn’t get the hint.

Also, he chews with his mouth open, so whenever he snacks, I hear that nasty smacking sound of the food churning in his mouth and his lips smacking.

Can you tell it’s Friday and I’m ready to go home?