I lost a paddle once and it's easy to do.
I remember leaning my paddle against a tree while I got ready to leave and it fell over falling more into the tree.
I though well it can't fall any further than that and kept packing up.
When I left I looked around and saw nothing left behind (forgeting my paddle was still in the tree).. and drove off.
The next day I realized what I did and when I went back for it it was gone.. Bugger.
Now I do a quick check before I drive off.. Board, check.. Paddle, check.. Crocs, check..

Good onya firstpoint..

DJ