Kek! Ran across this searching duckduckgo for stealthly'
How to STEALTHLY Adapt a Common Orthopedic Cane for Self DEFENSE
Generally speaking there are two schools of thought for using a cane for defense. One is learning a group of “moves” that involve human physiology so you can take advantage of weak points, leverage, and balance to naturalize your opponent.
The second school of cane defense is what I call the “bang on them 'till they drop or run” approach. This appeals to my KISS nature in that all you really need to remember is what parts of the human body hurt the most when hit so you can either disable or dissuade an attacker in the quickest manner.
That said, I will also make the following disclaimer: no matter what cane defense method you choose, you should always seek to resolve a potentially violent situation without actually letting it turn violent with the possible escalation, legal, and moral issues involved. Use your head before resorting to using your cane.
https://www.instructables.com/id/How-to-stealthly-adapt-a-common-orthopedic-cane-fo/