What will happen to this small button in the subway car?

Appendix 1:

Another small knowledge that is useful in front of relatives and friends has increased ~

Appendix 2:

There is also something that must not be moved on the plane: emergency door.

If you are good at the emergency door switch, you will get the "praise" of the entire machine personnel, and the first thing after the emergency descending is to catch you to detain, usually 10-15 days.

Appendix 3:

If you open the emergency door, you are also equipped with emergency slides, and then there will be huge compensation waiting for you, starting 50,000.

After the plane is stranded, the cost of other passengers on board, the cost of accommodation, and the cost of the airlines to dispatch other flights, you must also be responsible. There are almost hundreds of thousands.Don't touch the emergency door.

Appendix 4:

The old men have had the experience of pressing the wrong button before. Welcome to share your story in the comments.

- END -