At Hewlett Packard they had a policy against having a knife on company property with a blade longer than 3 inches (or such). I carried a Chris Reeves Mnandi at work with its 2.75 blade. It is what I called my gentleman's knife given its none threatening appearance. Very functional blade and it is pretty and expensive.
https://www.dlttrading.com/chris-reeve-mnandi The admins would whip out enormous kitchen knives to cut up cake but no one ever raised a concern.
