It happens to me too, so it must be a function of the duper-glue itself.
 
Art Weil wrote:
 
> Dear anyone;-
>         You know about super-glue?! The stuff you use to join both halves of
> bivalves when you don't want anyone to see the insides? The question is:
> Where does it go?
>         You buy the super-glue, take it home and use it once  (maybe twice),
> then you put it away. Next time you need it, it isn't there. It isn't
> anywhere. It's gone. You have to go buy another tube. The lost tube
> never turns up again. Now, I'm not stupid. I know all about the
> disappearing paper clips---how they metamorphose and change into coat
> hangers. Aren't there always unused shiny coat-hangers in your closet?
> (I have no evidence that buried and watered coat-hangers eventually
> change into bicycles).
>         But where does the super-glue go?
> The Question Man