Even if you got a frog that required you to feed it crickets, you most likely won't have any issues keeping them in the cricket carrier unless you happen to have an accident, like knocking it over and the lid wasn't properly attached. Aside from that and the occasional cricket that jettisons its leg and makes a run for it, your home should be safe from crickets. And yeah, just wanted to agree with what people were saying about the personality differences; Greens are shy, active enough but typically not while being watched while Grays are all sorts of active and pay almost no heed to a nearby human being. Overall both frogs are great, but I preferred my Grays when I had them.