if your gorilla glue is going bad..............................you aren't building enough !
seriously though.. what really weid is when it plugs up,you unscrew the lid, and there is that whole new knozzle shaped out of glue in its place..its like it regenerated itself preparing to shed! I don't know how many times I took the lid off and thought that dried glue was part of the bottle.
One way to save wasted money on gorilla glue is to use the Elmers Ultimate version..its about half the price.