If one of the Sheeple is still scared of it, tell them that you received it from a Nun as a gift after spending 3 years as a orphanage volunteer in Tanzania. And you thought that you had lost it while working on a ocean-going science ship while studying global warming. But you found it on the last day of your trip, and it has never left your pocket since then.
Its not an evil knife, but a reminder of your service to humanity.
Brilliant answer
