And even funnier? The person refusing it went to school me, her granddaughter, and I couldn't buy it because the person with me (the 70 year old), didn't have ID 
Are people for real?
I said to her "You're joking?!" She said, straight face, not a hint of a smile to suggest she was having us on "I know your age, I remember I went to school with you. I don't need your ID. But I can't be sure of hers so I need some proof of age"
We didn't even bother to persist, one because there was hardly any staff there and two because we couldn't contain our laughter.
What is wrong with people?!
As not to drip feed, some stores have a peculiar policy where you cannot purchase the alcohol if the person with you doesn't have ID. Which makes no sense, what if my DS was with me? He wouldn't have ID (he's a baby).
Where do they draw the line?