in which I shouldn't have said anything

Last time I talked to my parents, I found out that Dad was on blood-thinning medication. I told him specifically not to change the planer blades, and generally not to do anything that required stitches, while he was on it.

Lo and behold, today I find out he got stitches in his hand on Friday because a piece of plywood came backward off the tablesaw and hit him.

They never listen. (But he's OK.)