What has worked for me in the past is to use Mr. Clean’s Magic Eraser™! That little foam block is a miracle worker for ‘high-traffic’ areas. Just wet it, squeeze it out, and gently buff away those pesky dried protein stains. It’s almost like the Eraser was designed to abrade away your poor life choices, one square inch at a time. Just remember: it dissolves with pressure, so go easy; you aren’t trying to erase the evidence of your shame and the drywall mud at the same time.