Peace Scorpion,
No my dear brother! You are very wrong about this.
Question:
Where can I learn more about the potential truth to the story of St. Peter being crucified upside down?
http://www.unicorne.org/orthodoxy/avrilmai/stpeter.htm
This link answers the question well, I believe.
You're getting way too superstitious friend, and yet you're the one telling us the Catholic Tradition is silliness? You show me that you're beginning to take the wrong road. Stay to the path of God and don't get distracted by weird allegations and conjecture. You are ignorant of St. Peter's death, but with luck this link has helped you.
Peter felt so unworthy to even be crucified the same way as Jesus.
This was a very noble action by St. Peter.
I'm sincerely sorry if you felt this was satanic.