If gate agent accidentally boards wrong plane and boarding pass scanned what do we do

[CupCrusher40]

late changes common

[floridaguy]

I cannot tell if this is a serious question or a joke.

But IF, and IF a gate agent puts everyone on the wrong plane, I find that hard to believe given that the QR code on the boarding pass is matched to you and the flight.  That gate would also have to be aligned with your flight otherwise the system will bounce your boarding pass back indicating the wrong flight.