My 2 year old is obsessed with removing her arms from the build in harness / seat belt in her car seat. No matter how tightly I adjust the arm straps, she always manages to remove her arms! Obviously this is a serious safety issue so I end up pulling the car over to force her arms back through the straps / harness...200yds later, the arms are out again!! Can anyone help? We've tried 3 different baby car seats but would be willing to buy a new one if it was toddler proof!!