My 18mo DD can sometimes be a little houdini also..... it's hard isn't it!? She's gotten out of her carseat before and pressed the release button and I've had to pull over. Hasn't done it for a while thankfully!! I am hoping she's forgotten.....

From speaking with most Mum's who have gone through this, they all say it's just a phase and it passes.... GL!! a bloody dangerous phase though huh!!