I asked a flight attendant how overhead bin **** e really works — here’s what most travelers get wron...

When you pack a carry-on bag, you expect to bring it onto the plane with you. But more travelers are finding themselves stopped at the gate and told to check their bags – even when overhead bins don’t appear to be full.
I recently watched it happen in real time.
A woman with a designer carry-on – the kind that clearly wasn’t meant for a baggage carousel – was stopped just steps before the jet bridge. The gate agent told her the bins were full or nearly full, and her bag needed to be ch