Originally Posted by Trakhak

If you're in the "Presta valve caps and nuts are superfluous" camp, you deserve to know that the knurled nut atop the valve core is superfluous, too, so snip that off!

That way, you'll never again see the handle of your Silca frame pump explode out into the street. As long as the pressure is maintained at some minimal level, it'll be fine---and you'll be able to simply discard the punctured tube (or tubular) with a clear conscience instead of worrying about repairing it.