It's a social commitment at least as much as a creative/culinary one, and since there aren't a lot of people you'd want to give a pie minus a slice to, that keeps the extra calories under control.
And you feel like you're growing ever-thinner, as all your friends & neighbors eat more and more pies. ;)
"Yes, I am in shape (round is a shape)"
I suspect that deep-fried-battered haggis might exist which could be very spherical.
Could also do it on pi approximation day (July 22), then one doesn't have to be so exact about it.
22/7 ~= 3.14
( = 3.1415929204 )
is one approximation I have read about, attributed by some, to ancient or medieval Indian or Chinese mathematicians.
(Yes this is worth fighting over!)
Has nobody here ever done this? It comes out perfectly cooked.