Every June, The Thane of Thoth, a tavern, helps celebrate Chichesterton’s famous Regatta-on-the-Hogg by dropping the price of its brews by 12.5% for the third of a fortnight that couches the merriment.
Question: Speculate as shrewdly as your humble station permits on the following: Will Gerry Rattigan, the proprietor of The Thane, pass the savings on to Sir Alistair Chichester, or will he keep the difference for himself by charging full whack?
Hint: Gerry knows Sir Alistair, a Peer of the Realm, doesn’t give a jenny’s whinny one way or the other. Further hint: Base instincts are inherent in the cloth of which Gerry is knit.
Express your conclusion in boolean form, followed by elucidation whose chiefest virtue shall be a commanding brevity.

“Tagg’s Island,” Sir Alfred Munnings, 1919.
(Copyright 2018 James Mansfield Nichols. All rights reserved.)