Wait! I've been in this exact situation in 2015. Internation flight Philly to Doha. Plane sat on runway for 3 hours. Burned too much fuel. Returned to the gate

Wait! I've been in this exact situation in 2015. Internation flight Philly to Doha. Plane sat on runway for 3 hours. Burned too much fuel. Returned to the gate to refuel. I had already missed my connection window, so I told them I wanted to get off the plane. 8 minutes later the Air Marshalls came to get me, and off I went in a hurry.