Tommytoes:
Rip to the driver but the whole things backwards. So he’s gone under the trailer obviously not checked trl break before hand. Not done tug test not put dog clip in obviously but stuck his lines on.
It seems that the chap was actually doing a split coupling mate. As with Winseer and yt03, I too nearly came a cropper. (Iceland in Warrington).
Didn’t check the trailer brake was on (bellend 
) and proceeded to split couple. What I did not realise was that the trailer (fully loaded 13.6 mtr) was on a SLIGHT incline in the park area, and as I hooked up the air the trailer instantly came towards me. Because I had correctly aligned the unit and also lifted the trailer correctly, the pin simply clicked into the 5th wheel and all was well.
Ruined my undies though… Lesson learned.