We are a week into training our 3 year old son. He did very well the first couple of days, but it's been touch and go since. At school he refuses to even attempt the potty and holds his poop and pee until he comes home. At home, he'll go pee, but it's hard to get him to even try in the toliet. He's had a few accidents now when we're outside. We reward with skittles when he goes, but getting him to try is a challenge. I usually have to threaten to take a toy away to get anywhere. Any tips for what worked for your LO?