404 Titain
I think you'll find my point was you don't enter and backtrack a runway if your not ready to roll, (i think thats why at the holding point at a controlled aerodrome you report ready!!!) so the tower can clear you to enter the active runway and TAKEOFF not sit there waiting for flight attendents to put there seatbelt on! Pre-takeoff checks should be completed before entering an active runway that should help prevent problems on the runway... sure it will happen rarely that a problem will arise but i've seen aircraft hold up the whole pattern way to often in my career, just because they are the airline and think they own the runway!!!
that would help stop new guys (trying there hardest to cut a .1 off there flight time for there tight arse boss) from orbiting on short final!