Originally Posted by andryas

Let me guess, some passengers decided that they didn't want to fly anymore just before boarding was completed, and they had to call back the ramp crew to dig and unload their check baggage. Believe it or not, it happened to me twice on UA in November and December, both caused 30 minutes to 1 hour delay. In both instances, no announcement was made except apology for the delay, but any FF would know exactly what was going on. The similarity of the two events made me think conspiracy, or that I was the unluckiest UA flyer