As a young sprout it seemed to me that what distinguished us as Presbyterians from the other Protestant churches was that after church we went to the basement and ate lunch. Which seemed like a good thing to me. Catholics of course went to a separate school and were therefore different in some obscure way.
Later I discovered the strict Calvinist variety wherein you are predestined for Heaven or Hell at birth. Which sounds like a good excuse ... but somehow it doesn't work out like that.