There is a subtle connection between the word "intravenous" and the number 4. Can you figure it out? If you think that you want the answer, read on...

"Let me tell you why you're here. You're here because you know something. What you know, you can't explain, but you feel it. ...Like a splinter in your mind, driving you mad. It is this feeling that has brought you to me. Do you know what I'm talking about?"
"The Connection?"
"...The Connection is everywhere. It is all around us. Even now on this very page.You can see it when you look out your window, or when you turn on your television. You can feel it when you go to work, when you go to church... Unfortunately, no-one can be told what the Connection is. You have to see it for yourself
This is your last chance. After this there is no turning back. You take the blue pill, the story ends, you wake up at the index and believe whatever you want to believe. You take the red pill, you stay in Wonderland and I show you how deep the rabbit hole goes.
Remember, all I'm offering is the truth. Nothing more"
Take the blue pill
Take the red pill

As you have probably realised, the above is plagarised unashamedly from The Matrix without authorisation. Copyright is probably owned by the Wachowski brothers who created the whole thing or whichever film company it came from.