SAKs. Ya gotta own one.
Yeah, a Swiss Army knife would be a fantastic choice.
The blade size is right, they won't draw attention in public, and depending on your exact choice, they can be very inexpensive.
The tools can be very handy as well.
The BladeForums.com 2024 Traditional Knife is available! Price is $250 ea (shipped within CONUS).
Order here: https://www.bladeforums.com/help/2024-traditional/
SAKs. Ya gotta own one.
I would have to say that I am bias to the locking knives. Had a slip joint close on my hand and imbed itself completely into my first knuckle. Granted I was only 10, and was not being too smart, but it has stuck with me over the years.