Tenchi OVA.  I managed to score two cels from this 
sequence, where he is hiding in the school from 
Ryoko, one with eyes open and one with eyes shut 
(squeezing out a couple of tears of fear!).

I like the cel, but good lord, look at the sketch! 
 Both cels came with matching sketches, and they 
are easily the best sketches in my entire 
collection.  

*sigh*

JP