Incredibly cautious, those kids who personify the crab sign are the ones likely to either hold it in for fear of having an accident or refuse to poop outside of a diaper. Once they do get daytime potty trained, they are often the ones who continue on with bedtime diapers for months afterward. It will be exhausting, but be mindful of keeping your own frustrations in check – they're easily hurt and even one angry word can undo a lot of their hard-earned progress.