Another b.s. overly complicated "martial art" self defence.
Oh dear, swing a cane with one hand like that in someones face, and most likely your assailant will happily sacrifice pain on one forearm to get to you. And if you miss your target, it's unlikely you will get a second chance.
We too love the use of improvised weapons, and despite so many others who still teach the romantic notion that anyone can defeat one, or ten people, with nothing more than their fists, our training shows the reality that empty hands should be a last resort in a REAL self defence situation.
There is a much more realistic and far more effective method of striking with a cane, walking stick, baseball bat, pickaxe handle etc. (one system for all!). A real world system that has been proven over DECADES of actual combat. It's something that we teach weekly at our Limassol street self defence classes.