Pictured below is our little garden. We're using a technique called square foot gardening, which lets you pack a lot of veggies (or flowers, if you really want) in a small space. The strings divide it into square feet, so you can better keep track of what you plant and where.
Last night when I went out to water the garden, one of the strings was weighed down under some dirt. I thought that was odd, and as I pulled the string up from the dirt I saw that it was weighed down because a cat had had been digging in my garden. Guess how I knew it was a cat. (Hint: it involves a shovel and a plastic bag.)
Not pictured: cat feces