maybe in some other times..rats are being harmful to human especially the substance in it's urine that can affect alot to humans..it may cause different defects that may harm humans it may cause...
No, not unless consumed. Of done so... Well, its like anyone else's droppings. The truth is, if your were to consume a large (And I mean LARGE.) amount of it, it can be fatal. Thi sis just for...
I am assuming you mean the heating vent in your house, It would be better to remove the carcass and dispose of it. If you know where it is and if it is too far to reach by hand use a shop vacuum with...