I would use a 19th century ratcheting antique navaja. After reading the Manual del Baratero I am now fully equipped to dispense well deserved mayhem on anyone foolish enough to invade my castle.
As I theatrically and slowly open the old folder, the sound of the "carraca" will hopefully mesmerize the evildoer, who I am told will passively stand by until I send him on his last journey with the rusty Santolio
. Of course, if due to uncontrollable nervous agitation brought on by the ratcheting, he heads my way, I have plan B: Throw the navaja away and run like hell out the backdoor, yelling wildly that someone is trying to rob my antique collection
Cheers
Chris