Building site being in my backyard. Cement pourers kneeling on nice boards as they did finishing work; after they left noticed my garden kneeling pad moved from garden to cement site and they took their boards with them except for one. Today went to start assembly of another cedar raised bed- only 1 of 4 of my 1x8" cut to 3' long end boards is there! All the 2x4s are there so the folks framing the cement forms with 2x4 stakes are innocent. Went to check that left over kneeling board- yes- except for being grimy and coated in cement on one side, it's cedar! And they have half the ends of my next raised bed and I don't know if I want it back anyway! I can see using scrap wood right at the building site, but walking around my yard and picking up wood, and then not leaving it? Not on! And to think I gave some spinach to one of the guys! Grumble grumble... I'd carefully checked that all my garden TOOLS were still there as the strange work crew packed up to go- never thought to inventory my lumber!