I use to drink coffee. I thought it helped me when I was up late on the computer. But boy, when the caffeine high wears off it was a lot like being gassed at the dentist. (does any dentist use gas anymore or am I just dating myself?) I would be typing away and then I would drift off. My face resting on the keyboard. Out like a light. I would come to and find that my face had letters imprinted on it from the raised lettering of the keyboard. Funny thing though, sometimes what was imprinted on the face made more sense then what I wrote just before passing out.