That one of those plastic caps from a water bottle...is "exactly" the right size to stopper up your cockpit scupper drain...?
And that when your cockpit is full of rain water, the pressure holds it in there and you can't get a fingernail in there to pop it out...?
And that when your cockpit is full of rain water, the pressure holds it in there and you can't get a fingernail in there to pop it out...?
