Wow, the majority ( if not all ) the comments here are propably going to increase OP's paranoia. Don't worry OP, FML people are just messing with you...Or, maybe they are NOT!

You're not paranoid, you're realistic. You always have to prepare to avoid being stabbed. Don't bend over in front of your co-worker, he might fork you!

Just because you're paranoid doesn't mean they aren't out to get you!

just keep some type of towel or cloth handy. that way, IF he does come at u, u can use it to defend yourself! theres nothing wrong with YOUR paranoia, u wont be a stab victim atleast. now, if u had a tin-foil helmet on and said u were worried the aliens could see ur thoughts, then I would worry if I were you :)

That's not a knife, this is a KNIFE...(Australian accent)

Nothing wrong with that. You never know.

It's always good to be prepared, as many people have said above - if you're on edge, you have a quicker reflex response if something happens. Who knows- it might just save your life! :P However, if it's bothering you to feel this way, or interfering with your daily life (friends, school, work, hygiene, etc) then you should consider seeing a psychiatrist, or another psycho-therapy type doctor that costs less (or is covered by your insurance plan). :) --> Also, if you're worried about having to take medication or anything because of this, just know that there are many other options available to help (natural supplements, talk therapy, cognitive behavioral therapy or CBT, and many others).

I do that all the time. Just wait. Itll come in handy when somebody actually tries to stab you.

Ive had those days ..

Good chance to get rid of this fear