When pulling down loads, give the cases a tap-tap-taparoo, on the edge of the powder catching device (garbage can, canister, bowl, whatever you're using).
Even uncompressed loads may have some stubborn powder 'deposits' hanging around.
If you're going to be reloading the cases without further processing, be sure to visually check each case. (As IdealTool noticed... it isn't a bad idea, any way.)
"Such is the strange way that man works -- first he virtually destroys a species and then does everything in his power to restore it."