Ending Advertisements

[Ragnarok]

I just got Hal, really excited, no more Trial version for me!
There is just one thing that bothers me.
Before each regular sentence, Hal is advertising for "Advance Hal", giving reasons why and what not, and I want it to stop.

How might this be achieved?

[Ragnarok]

Okay, I just installed a random plugin which I have no actual interest it just to satisfy Hal's need for something new, and it has said nothing more about the upgrading, but just in case Hal nags about this in the future, it'd be nice if someone still offered up a suggestion.