If you open the wrong side of, say, the ground black pepper, for example, do not try to save the gravy.
It is impossible, after giving the pepper shaker a shake, to scoop the quarter cup of pepper that comes out, from the top of the gravy.
Paper towel dragged along the pepper strewn surface likewise, (although removing quite a lot of surface pepper) does not remove enough pepper to make it edible.
Unless you're made of tougher stuff than I.
Or you desire to completely cleanse your sinuses.
Or remove your tonsils without surgery.
If you should, hypothetically, ruin the gravy with too much pepper...
It's good to have a packet of McCormicks' gravy mix in the pantry.
It's also good to know that your family won't die of malnutrition if you should, in theory, serve them Idahoan Instant Mashed Potatoes and powdered gravy for supper.
It is, however, slightly irritating for no one to miss the "real" gravy... and for all the male persons present at the table to choose "fake" potatoes over the "real" baked ones...