I had an engineer once show up to the re-scheduled "lets get the engineers ideas meeting before the yearly plan ships" meeting that we scheduled so they could be there who then proceeded to spent 15 minutes complaining how they didn't get any input before finally asking what the meeting was for, and finding out they had 45 minutes remaining to give feedback (they had skipped the meeting the previous day, and I wanted to make sure they gave their impact). (I tried to interject earlier but was asked "please let me talk" so I did).