Something was Wrong at work today. I described it to the building manager thusly: "It was as if millions of mosquitos cried out at once - and were suddenly silenced."
Loud. LOUD. High-pitched. Shrill. Loud. Right by my desk. For two, three minutes at a time. Irregular intervals. Like being in an MRI, that way, but with horrible earshattering mosquito/alarm noises instead of clanking.
Set my teeth on edge (they still are, an hour later). Made me nauseous (ditto).
They'd better fix it by tomorrow. (They do have a good idea of what it is.)
Sick to my stomach, and my head is pounding... EDIT: Also still shaking and unable to concentrate. If I go in there again tomorrow and it isn't fixed, I'm seriously leaving.