Thats a good point mate, if you dont tell people all they CAN do is guess. That goes for your family. Another tip i have for you is to refer to your historic thinning as a bout of alopicia. People arnt so quick to comment when they think it was a medical condition. Its common for people to go thin in times of stress and doctors can pescribe minox to help solve it. If that doesnt embarress your family member into shutting up he/she will be making everyone else feel uncomfortable enough that they may say something to him/her...