challengerX
I w0uld tie him t0 a chair. Then I'd set up a pr0ject0r. A pr0jector, which pr0jects the letter 0 and the number O. I w0uld then f0rce him t0 use each 0ne c0rrectly, and give him a painful electric sh0ck if he refused 0r failed t0 d0 s0.
Then I'd fucking sh00t him in the face.