Neither buyers or sellers have any control over what the couriers do with a package. I don't think writing 'fragile', 'glass', 'do not bend' or 'do not crush' on a package makes any difference, or at least since the 1950s? They are 'scanned', nobody has the time or inclination to go through thousands of parcels reading them? Bearing in mind the volumes, i think its unrealistic to expect RM to deliver parcels individually on a velvet cushion.