The RC did a random check on several boats and during one of these checks (Kenbeek/Brouwer) the RC challenged the correctness of their paddle. After that Kenbeek filed a protest against all other competitors to have their paddle (especially length) checked. After that the RC decided to check all paddles and it seemed their was a queue next to the measurers tent with at least 100 competitors having all kinds of ingenious paddle-like creations.
Dutchman Vincent Kruyt "found" a flagpole to extend his paddle not knowing the original owner of the plagpole was standing just behind him in the queue. A chase, which started in de RC's tent and ended on the beach, followed.
Also the Boulogne bro's came up with a paddle made out of a beertray. Hilarious.