Four weeks ago I stored about 60 Cox apples in a large plastic bucket in my garage on a workbench. Some quite big apples. All very sweet this year. There is a large window at the back of the garage which is always open to let my cats in. Today I went to get some apples and found only two in the bucket. No sign of animal droppings. Is it conceivable that grey squirrels could have come into the garage and stolen them? Or anything else?