Originally Posted by JohnBrooking
Where did my reasoning go wrong?
Basically in your assumptions about the number of people willing to engage in a crime of opportunity.
You have my sympathy, but your plight is like going to the beach, sticking your wallet your shoe and then coming back and saying "How can this happen? I hid it in the toe...."
There are some honest people, but many are not. You actually need to make it inconvenient to do the wrong thing. Slightly obscuring an opportunity doesn't qualify because the hassle to the thief is negligible. In your case, you actually provided a bit of cover.