shucks!!

Don't you just hate it, when you arrive to work first thing in the morning, the first day of the week, and you found that your superior/manager/boss had arrived with a black dark mood in tow.

It literally darken the air in the office, and you, being the very next person in contact, are helpless in changing the situation but to appear calm and composed and wait for his/her mood to pass, while doing the best you can to avoid adding the tar to the mood, however small the chance of success.