Cardboard

Yesterday, I (as seen in the picture below)...



... transported three large cardboard pieces home from my office, on the roof of Smørebrød (as seen in the picture below).



When I arrived home (as seen in the picture below)...



... I could find only two pieces. I have no idea where the third one went, in any way I couldn't see the 1.2x1.5sqm of cardboard. Maybe it flew off during the drive.