We have these trailers you standing on the trailer at the back like that is not safe when bringing floor down is a no no you are right on the edge you can fall off we only lower floor from the out side of trailer. Or in side warehouse only we do what you did we would be sacked Can not see way you would stand so close to the end
The instructor does say that normally the trailer is placed on a bay so the driver has no access to the internal trailer buttons, he does say for showing (Training) this is what the buttons do, though in the real world you would never use it like this. We chose not to film from inside the chiller so as not to interfere with operations on the day.
