Rare. Booger that is still attached prior to your shower. Apparantly, this cunning and resourceful bodily fluid-come crustaschean is there all the while heartlessly looking on as you pluck his dehydrated brethren from the visable area of your nostrils throughout your first waking hours of the afternoon. As the shower wakes your tired muscles and the steam clears your besieged breathing passages this slimy bastard jettisons to the water slicked ceramic basin of your shower or tub unbeknowsed to you. Hince it's crimson glandular plasmic form is rarely documented and commonly hidden by higher life-forms with any sign of dignity.
Dude, sorry about that redbooger caught in your shower drain!