Atka owns a valuable speed-boat. She is going on vacation and asks her neighbor, Regina, to store the boat in one stall of Regina’s double garage. Regina consents, and the boat is moved into the garage. Regina, in need of some grocery items for dinner, drives to the store. She leaves the garage door open, as is her custom. While she is at the store, the speedboat is stolen. What standard of care is required in this situation? Has Atka breached that duty?