Hack Office Is It Rude To Hack Up Flem In Your Office?

Is it rude to hack up flem in your office? - hack office

I have a colleague who may be ill or suffer from allergies, but it has lately much cough and cough, sputum hacks. "With regard because I know she does not spit, but it disgusts me. You can close the door, but I want to keep them closed during the day when it suddenly happened. Any resolution?