OMG Why didn't I know this before

The video likely worked due to the unexpected and unconventional method of preparing a sandwich, specifically cutting cheese with scissors and washing it, which creates a sense of novelty and curiosity.

The video shows a person preparing a sandwich by first cutting a slice of cheese with scissors and then washing it under the tap. They then add ketchup to the bread and assemble the sandwich.

Heinz Tomato Ketchup: ACTS - used to add ketchup to a sandwich. Removing it would change the sandwich preparation. Hienz: APPEARS - brand name on the ketchup bottle. Removing it would not change what happens in the video.