Reply To: Is it proper for an adult to drink from a water fountain? Home › Forums › Decaffeinated Coffee › Is it proper for an adult to drink from a water fountain? › Reply To: Is it proper for an adult to drink from a water fountain? July 7, 2013 6:54 pm at 6:54 pm #964774 Biology (joseph)Participant Of course it is proper. Why is this even a question?