While looking through these forums, I noticed the following screen shots (click for larger version):
At first, I was very concerned. As irrational as physical violence against prank callers is, I did not doubt it would be possible. After all, Hal seems to have his own personal army to conduct violence for him (listen here).
However, my concern turned to laughing my ass off when I noticed the next screen shot:
Thanks to Anonymous for the screen shots; you've been a big help. :)