The "Bunsen burner" line was actually taken from one of her drabbles in the series.

The first thing I did when I decided to do this story was ask myself, "WHY did Snape place an order with a store in Sunnydale, California to start this whole thing off?" I came up with a theory of Hellmouth items being more potent, I thought about Snape placing orders with stores all over the world to cover his tracks, I thought about Dumbledore intercepting the letter and sending it off to someone else- and that's when things began to meld together in my head.

I decided to use the five sentences to frame things, just to see if it would work. I liked it a lot, so I kept it in. I'm glad that it worked as well as I hoped it would!

Thank you very much for your feedback! Yours, and the writers I remix, are always the feedback I look forward to the most.