Limpet style sobbing, sat with him for 30 mins, tried to leave but when nuts, too distressing. He has never had an issue, he's 4.5 and was happy as normal till we got out the car. Has older brother at school. Only thing different Daddy gone away for a week with work, but he was all happy waving him at the airport. Is it a reaction to that? Shall I try him again later? He's due to go again Thursday and I don't want him to be the same. He says it's boring.
What to do?