I'd nursed a foot callus for years that hurt badly when I walked barefoot. Weeks ago, sitting on the locker room bench, I hit my limit. In desperation I pulled out my pocket knife to do some field surgery. A few minutes into it I glanced up to see two guys sitting across the room staring at me open-eyed as I dug into my foot with the tip of that pointy knife (8.5" with 3.5" blade)! I just smiled and dug that sucker out.
Should have gone after that callus a year ago! Amazing how such a tiny thing can aggravate.
But you're right about a knife alarming people. Years ago in another life I opened a similar knife to cut a cable and my boss literally jumped backward and exclaimed in fear. But he came from a place where, when someone pulls out a knife someone else usually gets stabbed.
They were probably just envious you were rocking a Kershaw Iridium Dessert Warrior. Which also comes in at under $100. And the Iridium family are pretty nice knives.
Tangentially, if that callus was a plantar callus (circular with a painful point in the center), you can get sticky pads with salicylic acid from the drugstore that will gradually destroy it. Much safer than digging into your foot with a knife, but I'm glad to hear it worked for you!
Yes, I didn't know WTF was there but over the years it had grown beyond annoying , becoming so painful I couldn't tolerate it. I thought perhaps something (a splinter, piece of glass or steel, etc.) had become embedded in my foot. I was determined to dig it out. I'm tall and not flexible so I cannot easily see all of the bottom of my foot. But I can reach it.
The callus was surprisingly small (~1/2") and came out in one piece after about 10 minutes of work. Nothing embedded. No bleeding, just a lot of knife-wiggling. The bottom of the foot is really tough!
Nicely made and always useful.