I had a problem about 40 years ago with my mother when I wanted to purchase an air pistol by mail order which had to be done by someone over 18 years old. My solution was to ask my gran to order it and, surprisingly, she agreed. I was very vigilant, waiting for the postman to deliver the package, so that I could intercept it, give it to my gran, who then gave it back to me to open. The s**t really hit the fan, in a very big way after my brother saw the air pistol and immediately grassed me up to my mother who went ballistic and confiscated the said air pistol. My gran went unusually very quiet for a while and I entered into some very "delicate negotiations" with my mother before I managed to get my air pistol back again.