SciFi writer Larry Niven, in his younger days, proliferated "Finagle's Law", which is basically Murphy's Law (Anything that can go wrong, will.) re-written for geeks.
My recollection is "The perversity of the Universe tends towards a maximum."
I can now add a corollary (that is, in addition to the one I've already added; Greenpa's Law: "Everything can go wrong. Just wait.")
Right now I'm spending a lot of time mowing grass. This is in preparation for our harvest- it's really hard to pick stuff off of bushes when the quackgrass and thistles are taller than the bushes; and it's also great cover for rodents down there. You gotta get rid of the grass. So I mow.
The guineas, you understand, are part of our long-term plan for the grass. A) they eat some. and B) they are phenomenal "watch" animals. If we wind up with sheep, or calves- the guineas should be all over, and will alert the dogs to any intruders. Theoretically.
Anyway. Partly I mow up on the John Deere, using a following flail. And, I mow using the Grillo walking tractor, with the Ferrari sickle bar; 7.5 hp Yanmar diesel, and the best sickle bar ever made. I'm in love. But you still gotta walk; for miles, holding on to a jerking, vibrating noisemaker.
So, it's, like- THIRSTY work. For reasons probably connected with Finagles Law, my JD 70 hp 4WD utility tractor (open, no cab) has NOWHERE to put or hang a water container. Apart from improvised places, which always result in tearing off a signal light on a tree branch, or the metal water container being dropped into the mower. So- no water. Likewise, the Grillo is a water-free zone; you just don't want to be carrying a canteen; it'll beat you to death, and a "camel" pack is a hilarious idea- you'll sweat out twice the water you can carry because it cuts off air circulation on your back, completely.
Having done this a time or two, of course you can plan for work loops that end up somewhere where you can get water. Obviously.
One of them is our 80 year old Aermotor windmill, which pumps all the water for the Little House. When the wind is blowing, of course. But I do usually try to avoid mowing on windless days (which we have plenty of in summer) - because I'll sweat and die.
So- today the wind is blowing, VERY steady; 12 mph from the NNW. A good clear direction; pumps water great.
I get off the tractor, cool it down, turn it off; pull out my earplugs; and walk to the windmill, which is pumping just as steady as can be.
I bend down, pick up the hose from it- and...
The wind dies.
This is ABSOLUTELY reliable. I've been keeping track; for 25 years (we didn't have the windmill for the first 5).
No kidding. In 25 years, here are the data.
No. of times I've taken a drink directly from the pumping mill (or tried to): 264.
No. of times the wind has died when I picked up the hose: 248.
No. of times the wind quit completely, and I gave up: 197.
Fool that I am; today the wind was so steady, I thought I could sneak in a drink.
Nope. Gave up.
Here is the new corollary to Finagle's Law:
The Aermotor Corollary:
If you really need a drink from your windmill, the wind WILL die immediately, and water pumping will cease for as long as you wait for it to restart.
Those are hard data folks.
Somebody IS out to get us.