Delusions... by @ryuuko (Ryuuko ]8=B])

We were doing ellipses in math, and there was this model that had two hooks for the foci, and a string as the major axis and all this other junk...I looked up and saw this big sharp toothed thing, and it jumped off the chalkboard and tried to eat me, so I had to stare at my paper intently until it lost interest and climbed back into its proper place and resumed its usual form.

...I think I'm losing my grip on reality...