Jon thinks she’s getting dotty, but I think Izzy just has a mind of her own. Either that, or a stomach with a mind of its own.
Whatever the reason, Izzy is making a name for herself as The Lone Sheep, not something we see too often among sheep, whose name itself has come to mean “to follow blindly”.
Izzy has become a symbol for me of the individual, the one who looks inside herself and finds her own path, but also understands the importance of community. Even with her odd ways, Izzy is never rejected by the rest of the flock, but alway welcomed back.