Ever assume that the second layer was blank (had 
only a line for a mouth) and was just included 
for some bizarre reason:  therefore throw 
(literally) the second layer aside to be disposed 
of (or otherwise used up) at a later time?

Only to luckily(?) realizing a few minutes later 
that the cel looks kind of strange!









Then have you ever repeated the same process on 
the same cel FIVE MINUTES later???

:)