After she cut one of the larger pieces in two, and one of the remaining pieces looked like it should split pretty easily, so Lisa backed off and I took a whack at it with the maul. It split, all right, but the pieces went flying off in both directions. One of them hit the chainsaw that was sitting a meter or two off to the left. Lisa went "Ow!" a couple meters further away as something hit her.
Uh, oh. When the wood hit the chainsaw, it broke the oil cap, which continued onward and hit Lisa. I doubt you could have done this if you'd planned it. No harm to her, but our chainsawing was abruptly curtailed. You can't run the chainsaw without oil, and you have to have the cap in place or else the oil will shoot back out the hole.
We have the saw's instruction manual and parts list. The part itself costs only about $1, but it would cost another $9 in shipping even for ordinary take-a-week shipping, and a lot more for overnight shipping. I'm going to hunt around and see if any of the local saw-supply stores have that particular part in stock. There's a chance that there's a place within walking distance (even here in dinky little Mehama) that has the particular type of oil-cap cover for this saw.
Phooey. If I had been more diligent about moving the other equipment away while I was splitting wood, we would have easily finished reducing those un-splittable logs and also would have cut the various tree branches down to burnable size by the time it cooled sufficiently for Lisa to assay another visit to That Darn Roof.