I believe you. Hehe.
The way I learned it was as mentioned from the side or knee on belly.
Say you're here.
(attention, attention, not knee on belly. Want to do it from there? impossible imho. First secure the first grip, then jump down to the side and continue as usual)
First hand(your left) grabs the lapel under the neck, over with the other hand(guess which) and grab the lapel on the other side like you would a bat (obviously) and bring your elbows together (top arm's elbow to the floor) to tighten it.