Hey, Our Sheltie Sam is nearly 5 months old and doing great, he has learnt toilet training, 'sit', 'lie down', 'jump' and 'goto bed'. He loves food so it was pretty easy so far. How I'm trying to teach him 'stay' and 'roll over' but it's not sticking. With 'stay' he just loves coming towards me and won't stay still, and with 'roll over' he goes into lie down but as soon as he sees the motion to roll he sits up. If I try it with treats he just goes directly for the treat... Any advice?