I got on the witness stand and lied about seeing a black man use drugs in his car.
I hope you're joking. You really lied under oath?
Yes, I did. I was just curious how you feel about this lie.
Well I think what you did is extremely wrong, and it's also illegal. You swore in court to tell the truth, and you broke that so you could face legal issues if it's found out.
Nobody can prove I lied.
Even if nobody ever finds out you lied, do you really want to live with the guilt that you helped convict a potentially innocent man? Why wouldn't you just tell the truth? I really think you should come clean about what you did so that the man doesn't potentially end up in jail for something he didn't do.