I remember some relatively short time ago 3 young hispanic guys tried to rob my Dad as he was escorting my great Aunt out of a bank. One came behind and squirted something on his jacket, pretending a bird had shat on him. When he tried to get my Dad to take his jacket off (ostensibly to wipe it off for him) my Dad went into a boxing stance (he used to box) and the next thing you know a 75 or so old man is chasing 3 young guys down the street!
They saw the target wasn't going to be easy, and took off in a car.
Those are the lucky ones, your wife and my dad.
The unlucky ones get shot!
Be safe out there...