For non-goat 'owners', a treat is most anything you might be carrying or have set down within their reach: the mail, the newspaper, and cardboard box (especially if it has nails, screws or other small items to strew all over the area) bark off of your apple trees, dry leaves, sticks, any wood that is in their enclosure.
Tater chips, biscuits, bread, crackers, peanuts, hard as a rock old rolls, lasagna, beans, paper ID labels on Christmas storage containers...
Jack, Gracie and Casper can be QUITE pesky!
Jack, Casper (brothers), Ellie Mae and Gracie (sisters)