turns the slices of bread so that they remain symmetrical after applying the mayo, mustard, etc?
Need a picture to understand.
I could be wrong but you see how the bread isn't the same shape on the left and right side? Well after putting the sandwich together he makes sure the pieces of bread are lined up as if it came out of the loaf.
Heels? I can hear my father speaking: "I paid for a whole loaf of bread, you kids are going to eat the whole loaf before we open another one."
Heels are good with an egg on them. Homemade bread heels are really good when fresh and with some butter.
But I don't care for more than one at a time.