Students are told "look for an opening" then "create an opening". "Punch to head level to draw their guard up then go in under it" and that sort of thing. But what about creating an opening in your defence? It's not really an opening if you know it's there and have a plan to deal with the probable attacks that could seek to exploit what your opponent perceives to be an opening.
I recall one time raising my guard when sparring someone with a bit of a reputation for landing hard strikes to "teach" people not to let their guard down. We've all seen the sort, they overpower people where they think they can and stay defensive when they think the other person is better. They told me I had opened up, and then the next time I did it they thundered in with a kick. Except when they did I was no longer there but moving to receive the kick and counter.
I thought of this as I was reading an article about not giving away too much in a confrontation - not showing all your cards. Not exactly the same thing but sort of related, I think. Anyhow the article went along the lines of a strategy that was used was that, after all attempts to avoid a confrontation had failed and the aggressor was just looking for a fight, the guy defending took up a sort of dojo sparring posture which left his head exposed as his ruse. The aggressor sneered before barrelling in to clobber what he might have thought was "some sort of karate/kungfu wannabe". Anticipating that the most likely attack was to be a strike to the head, but ready to deal with something other, the defender in this case moved and received the punch while striking in return, gave the arm a twist which apparently did something to the shoulder and then kept going and out the door, which was the original aim when he was trying to avoid anything physical.
I just thought it was interesting.
Mick