So the bike's locked up to a solid rack with a Hiplock D1000 and a Skunk Lock through the frame and both wheels. Good job! But with a little set of hex keys one can make off with the cranks/pedals, derailleurs, brakes, bars, brifters, seatpost/saddle...a significant value of fencible components.

The idea of the emplaced ball bearing is to block the hex key from gaining purchase.