Well my luck ran out Friday night when Torbay had more rain than for the whole f the Summer 'til then. Fortunately, its parking place is fairly sheltered so I only had to wipe down the inside of the door (there was a bout 2" of water in the door pull) and the passenger seat.
What I'd forgotten was that while it's been laid up I let the insurance lapse so replacing the window's down to me. The regulator arrived during the week - but still waiting for the window, on the other hand it's only costing me £22 (iirc) & at least I found someone that would ship glass (most won't, because it's uninsurable - so my old mate at the former DorsetJeep told me). Not looking forward to the job, but for once, not because it's a KJ.
Did find a plastic bag big enough to over the opening, so that'll keep the worst of any more rain out. However, it does make it obvious there's no window, whereas before, with no uninterrupted view it wasn't. Then I spotted another parking space, that meant I could park much closer to a denser bush so even if it was noticed, you couldn't actually get up alongside the Jeep. The added bonus is, even if the rain was horizontal, little would reach that side.
I suppose I was just curious (but, in the end, proved the point) so used the KJ to jumpstart the XJ, which, apart from starting it last weekend using leads & the new battery, had lain dormant since mid-May.