Even a safe deposit box is better ... that said, where would YOU hide something in your home? ( Or the second or third place...)
When my house was robbed, the thieves pretty much overturned everything -- mattress, items in the freezer and pantry, drawers, closets. They did, however, overlook my stash of cash and good pearls, hidden in plain sight in a Tampax box. Guess the ewwwww factor was a little too great for them.