>>> finger stuck
Something like that can cause you to miss your ME bus and you can be out of luck. Teach, your children well (where have I heard that?) not to stick their arms, legs, fingers, etc. in tight places. You cannot simply saw the metal apart as it would get extremely hot. There was an incident not too long ago on Splash Mountain where someone wedged a foot in a tight spot in one of the log boats and almost got it broken when the boat went down the big drop.
>>> bus driver ... didn't offer an alternative
If the bus driver puts you off the bus, it would be the resort that would be responsible for getting you on your way quickly.
>>> arrived at the airport and Disney had messed ...
Going to Disney the question of standing is a non-problem. You would wait in the line for the next bus in the same way as everyone else.