At my old job, one of the mean old ladies (MOL) who worked in my unit was a chronic whistler. Fortunately, she could carry a tune. But the whistling. All. The. Time. It was so painful. It made us all miserable. Sadly, it was an office full of people who weren't boat rockers. So we just let it go for months on end. Finally, someone had a breakdown and screamed at her. Rather than of any of us having the cajones to say "Could you please stop whistling?" the situation got out of hand. And the MOL, all along, had not realized she was doing it. Naturally, her feelings were hurt that no one had said anything before.
Now *sigh* I have a similar situation. Except in this case, the whistler is not so talented. And the mind-grating nature of the whistling is only compounded by the slew of additional bad office mate habits she possesses.
I'm still a wuss. I hate hurting people's feelings or pointing out stupid things like this. And honestly, it makes me feel like "oh, I'm so superior that I can point out your issues." Also, isn't this my issue? This is why I vent, rather than one day exploding.