Someone Dropped Some Acid In This Grandma's Prune Juice

My #1 question about this video is how did this grandma get there. I mean once you find yourself in a womp womp dance party there's not much else to do but womp womp and dance, doesn't matter if you're a grandma or not. It just seems like if you had any senility left in your body that you wouldn't stumble into a womp womp party on accident. So maybe she's just down for the BUUUUUMP. But most likely she thinks it's the roaring 20's and she was stumbling upon a speakeasy filled with flappers doing the charleston.