Re: Fatty Knees dinghy question - securing oars
Drill a 1-1/2" hole through each oar blade, so that you can pass the bitter end of your locking cable through them, prior to locking the dink to something. Or add a 2nd cable to the dink for securing them via such a hole. And ensure that your oarlocks can't be slipped off of the oars, via an affixed collar of some sort.
Also, there's more info on that topic, tips for fitting out a dinghy
, & more, in this thread Sailor's Guide To Rowing
The Uncommon Thing, The Hard Thing, The Important Thing (in Life): Making Promises to Yourself, And Keeping Them.