Where's the who cares as long as it's followed by pie option? You also forgot the puh-can and puh-con options
Pee Can pie is my absolute favorite! And in my opinion, there is a difference between pee can and pee con.
We had a kid from down south who would get a little testy if you pushed him too hard. I would ask "Are you a Mexi-can, or a Mexi-can't?" He would get fired up and yell "Fock joo mang. I am frawm El Salveedar!"
And the answer is Pee Can unless you are a filthy yankee or worthless midwesterner. This is why we can't be friends.