Quietly watch this video while I recooperate with a little string cheese snack after going under the knife this morning.
(And I double swear I did NOT giggle at the 1:00 mark. That would probably be wrong.)
Charlie and Spike are two kittens with myotonia congenita, otherwise known as 'fainting goat' syndrome.
At the slightest sound, the kittens respond by collapsing and falling into a rigid paralysis, which lasts about a minute before they return to normal.