Did I miss a memo?

[Bob T.]

Twice in the last 24 hours, I had opponents who were out of line with their chat, and I suggested that they tone it down.

Both of them replied, with the exact same phrase ' Well, its part of my game to chat to get my opponents on tilt. '

Did someone publish an article or book or something that suggests that this is the way to play, or is this just a silly coincidence?