Lessons NOT necessary. LOLz.
Check out the news report (above) about a Virginia man who attacked an intruder at his home with a barely-used guitar!
This is MUCH better than using a gun for self defense because it got the job done, and nobody was hurt TOO badly.
Unfortunately, the guitar didn't survive the encounter…but that's a small price to pay for defending one's home from a stranger!
What do U think? Is a guitar a good security system? What musical instrument do U think would work best???