wayneburg, it's funny you are worried about what your co-workers will think of you for having a knife on you. Granted, an 8 inch blade hanging from your belt deserved a second look and maybe even some time with a psychologist, but a small folding blade less than 4 inches shouldn't be a problem anywhere.

I assume you are in the US and most state laws state that any blade over 4" must not be concealed. The clip on a spyderco can be showing and that satisfies the law. You could walk around with a samurai sword in most states as long as it isn't concealed.

As far as what you co-workers think- mine just think my tendencies toward being prepare add a little spice to the work environment and make work more fun.