Yep - as a lowly 2P my E+ aisle seat was re-assigned with no warning to a 1K who thought she was too important to sit in the middle seat in the row despite being on standby. I knew nothing about it until the gate agent called me to the podium five minutes before boarding and tore my boarding pass up and issued me one for 6E instead of 6D. I heard the woman on her cell phone after boarding and put two and two together.