A: Depends on the shape of the biscuit. If it's round I have to break it in half so I can dunk it. I'm a dunker.
Q: But which way up do you eat them?
A: Usually with my head at the top, feet at the bottom. I can't do headstands.
Q:Ah, but if you do not do headstands does the chocolate face the floor or the ceiling?
A: I don't have a chocolate face. I have a normal face.
Q: Oh dear... when you eat chocolate digestives which way up do you put the biscuit when you eat it?
A: Um, I put it with my hand at one end and my mouth at the other. That's right, isn't it?
Q: Oh dear... we're not getting anywhere with this. When the biscuit enters your mouth which way does the chocolate go, up or down?
A: The chocolate goes the same way as the biscuit! Into my mouth! I don't understand any other way of doing it.
Q: But is the chocolate on the top facing your nose or the bottom facing your tongue?!
A: The chocolate is on the BISCUIT!!!
Q: Which side, the top or the bottom? This is frustrating! And hard to explain which way up a biscuit goes! There's only a small number of ways you can explain it!
I suppose it must be one of life's mysteries: it's impossible to explain the difference between right and left, and it turns out it's impossible to explain which way up a biscuit goes.