Those are great ideas.
A friend told me how when he lived in a place where he could not legally carry a gun in his car, he kept a bottle of — well, I’ll have to describe it — one of those bottles of spray that you shoot up about 20 feet onto your gutter or somewhere like that to kill wasp nests.
He had been carjacked once in Central America.
He never had to use the spray, but he said it was pretty sure it would repel any cretin who attempted to come too close to his vehicle, and I believe him.
I wondered about using it so as not to get the blowback. Guess the key is to fire it off early, as soon as you realize a problem is approaching.
Is it legal? Hey, you can use whatever is at hand for legitimate self-defense and so you just happen to have a wasp nest fogger in your car/utility room.
You could always just claim you were shooting for the wasp on the guy’s shoulder. You know... helping him out and all. ;)
We have keychain containers of capsaisin - enough to give me time to exit quickly in the event of necessity. At home we have containers (large) of bear spray that we take on hikes in our area, but are handy enough to grab quickly in the event we can't make it to our "equalizers." We've already had someone knock on our door at 10:00 PM (and no one was visible at the door). We live rural and police take time to get here. We're not about to be "defenseless."