The customers remarked that she was insane, my coworkers don't know why we have to deal with this, and I was just laughing like a complete lunatic for several minutes.

"Uh, alright, you do Thanksgiving however you want then." Happy they made their point (?), they left, and everyone in the store was just so confused. Oh yeah, she had an audience for her mental breakdown.

And then they went on how European industrialization of American land was bad, they have some Native ancestry, and how they meditate, fast, and don't do anything remotely enjoyable on Thanksgiving.

"Hey, remember how yesterday you said to me to enjoy my Thanksgiving? Well, I don't want to give you the impression that I celebrate European Thanksgiving, so let me tell you why."

Well, that sounds weird and insane, what are the chances they come back?

Apparently they were waiting outside the store for me to come back from my lunch break, because as soon as I clock back in they come back in the store.