Why would a teacher kick me out of cl?

Today, I got sent to the principals office for putting a smoldering cigarette and a hip flask of whiskey in my teacher's desk. You see, my teacher left the room, and I had it all ready, so I ran up and stuck it in her desk. Then I called down to the office and asked if we could get a janitor in our cl to clean up a mess. The janitor and teacher arrived back in the cl at roughly the same time. Seeing smoke coming out of her desk, my teacher ran up and opened the drawer. You should've seen the shocked look on her face. I said loudly, "Hey janitor! My teacher is bad. Look at whats in her desk." Nobody believed it was really her's, and in fact, everyone blamed me (stupid tattlers). Do you think this was out of line for me to do? I thought it was quite funny, actually.