I see AFS every day. When we moved into our current house, my daughter, whose initials are AFS, got hold of a Sharpie and proceeded to initial every surface in the house she could get to until my wife found her and curtailed her exhuberant tagging. I still (12 years later) find “AFS” scrawled in places I didn't know she had so tagged. And we haven't had the heart to remove them all anyway.