Good point. Those are very real problems too, especially in small office environments.
You don't want that server in some spot where someone can accidentally kick it and suddenly the server goes offline. You also don't want it in an unventilated closet where it'll overheat.
As for noise... in this day and age of open office spaces and chatty coworkers, you'll be lucky if the server noise is your biggest problem. Unless everyone is working from home, and now the problem is physically accessing the server if it goes down or needs other physical maintenance.
You don't want that server in some spot where someone can accidentally kick it and suddenly the server goes offline. You also don't want it in an unventilated closet where it'll overheat.
As for noise... in this day and age of open office spaces and chatty coworkers, you'll be lucky if the server noise is your biggest problem. Unless everyone is working from home, and now the problem is physically accessing the server if it goes down or needs other physical maintenance.