Keep in mind that Davey Dog has already portentiously proclaimed AT LEAST SIX TIMES that he was leaving the Sink forever and ever and ever and ever.
The longest he lasted was forty-eight hours.
Likewise, he recently vowed (and not for the first time) that he would no longer speak to or respond to his proclaimed enemies in the Sink--me, Mark, PJ, Edso, MP. Max, etc. We saw how long THAT lasted.
So why would you make a bet when it's a certainty that the other bettor will welsh if he loses? I, personally, don't accept promises from liars.