Some Really Stupid Research by Echidne

It went like this:

Hmm. Fudge used to give me migraines. I wonder if it still does. Let's take a tiny piece and test. Mmmmm. No migraine yet. Maybe another tiny piece. Gulp. Delicious.

No migraine. This fudge is really good. Here is a large chunk, just waiting for my ivory snappers. Sooooo gooood.
...
No fudge left.
...
Migraine. Flashing lights. Nausea.