Haha, you're not alone--I do the exact same thing! I feel like too much water could affect the burrs somehow? I don't know. So I am with you! A few drops jostled around and it's good to go!
I use the teaspoon method (just the handle), cover it in water and stir the beans a couple of times. Just a single data point, but I've done this for 2 years at ~2.5 shots a day with no sign of rust on the burrs. YMMV