.It would be nice to have an entropymeter to measure the increase or decrease while you are actively engaged, once in starts beeping you bail.
I think we do have one to use once engaged, its called MBT concepts and when the eyes glaze (if you have the knack of communicating MBT well enough to keep interest otherwise) the meter beeps, and we or they change the subject.
The way I understand intent is that all that is required is for intent to be good pointed towards other, the actual outcome which involves lots of free wills and is out of any control of the intender isn't the point. It is the thought that counts, but I think more importantly it is the thought you didn't even know you thunk that counts more. I do not think many of us are privy to our actual intentions, it could just be me though.
Shin, you are love too. ;) There's more to say, I just can't think of it right now.