Kids and fakes keep uploading demos on KZread that show this trap as a technique, as it we do it on purpose. The pose in the air and have a demo partner that cooperates. Here I show it in action from Chi Sau sparring.
It is not an attack like most people demonstrate it. It is a result from our chain attacking being defelected a few times, which then leaves the other person trapped under their own arms.
Part of a longer video series, made short to fit into your business life, enjoy.