Whenever it comes to reading instuctions for things & working out how things work, it's always dh who does it becaused i am famously hopeless at such things. I had always doubted that the way he'd told me to install the baby car seat was right and he assured me it was ok. Today i read the instructions myself and i could see that he must have misinterpreted them. Discussed it with him this evening and he had another look at the instructions and it turned out that my doubts were justified - for 6 weeks our baby has been travelling in a carseat which wasn't tightened properly. I feel sick at the thought of what could have happened and so angry with dh that i don't know what to do. he keeps saying sorry but i keep thinking of what could have happened because of his mistake and constant dismissal of my worries. where do i go from here - can see this spoiling things for a long time