No problem, it's cool. I see where you are coming from, and your honesty is not only welcome, but valuable. What can I say, I'm new here!
It's not so much self-consciousness (I have used my SwissCard and Guppie plenty of times in public) but I prefer to remain as unnoticeable as possible, just out of preference. I am, shall we say... darker skinned, and just passing through an airport (oh the stories I can tell... ), despite being polite, friendly, and organized, I still get looks (and "random screening," of course) from the TSA people. Needless to say, I would prefer to not carry a "scary looking" knife, as I am sure trouble would ensue, almost regardless of environment.
I would like to carry a slippie/slippie-style knife, but they are a bit pricey, and being a student, price is the first concern.
I'm looking at SAKs (the Tinker comes to mind) right now, and might buy the OD-2 for grins and giggles.
Should I not carry a liner lock TU because of it opening in the pocket? Does that extend to other knives as well, as I carry my D4 TU...
I love the "grandfather gave it to me" story, BTW! That's a great idea!