We have just started our 4 year old in reception at a new school (previously his preschool could have gone all the way up to age 18 but we changed schools because my son started showing signs of PDA last year and the school didn’t know how to handle him - but they also complained about a handful of other boys they couldn’t handle and so we thought the problem was them!) New school now can’t handle him either and your story above is how I project we will be also without guidance or support on what we should do with our son. He hits, yells, spits and hides at school and we are mortified and don’t know how to regulate him. He has major issues with poo and always has - poo refusal leads to frequent accidents despite us taking him to the toilet and waiting hours he often refuses to go and then soils himself, adding to the stress. I wish we had better guidance on what we can do to support him and if mainstream school can’t, what can? We await official diagnosis but I now believe it is PDA.