Ds is about ready for potty training finally and I want to move straight to pants. I think he will get weeing in a potty pretty quickly as he's already had a number of successes when he's had time without his nappy on. But his poos are frequently quite soft and messy and not at all predictable. Is there such a thing as protective lining for pants so that he still knows if he's wet but will protect them from poo? I just have a feeling he's going to struggle most with having a poo on the potty. Any advice please?