Asbestos cleaning and removing
Your initial response was pure alarmism

Note that there is just one person that won a lawsuit for mesothelioma based on a 67 day exposure on board a ship.  That is considered a short exposure to cause a problem.  That's sixty seven days of intensive exposure on a ship.  

This is like freaking out because someone snuck into your room and smoked cigarettes all night, exposing you to second hand smoke.  

Yes, second hand smoke is dangerous.  To a degree.  But not like that.