I guess all y'all had good luck with your floors or didnt have them near water.
I had mine in about 1/2 of the downstairs of my mcmansion. You came in to a large open 2 story entryway, wood floors, with a sweeping curved staircase going up to the second floor, entry to the right to a carpeted living/dining room big enough to put in a couple of bowling alleys, and more wood going to the left to the downstairs guest suite and on into the kitchen/family room, also large enough for a couple of alleys and all wood.
We had the floors redone the week before we moved in. Couple of grand IIRC.
On the second day we lived there, I put a load of laundry in the washing machine and went to the store. Came back to 10-12 gallons of water on the floor. Drain line disconnected from the washer in the laundry room and the low point on the floor turned out to be the center of the kitchen. The floor had absorbed some of the water even through the expensive oil based finish. All the boards 'cupped' slightly, and of course the seal between the boards was 'broken'. Not great, although normal expansion/contraction usually do that eventually. After a couple of months, the floor laid back down flat again. I did a little light sanding and reapplied the matte top coat finish. Looked ok.
Which was just in time for the new refrigerator to be installed. I became aware that the installer didnt fully tighten the water connection about a month later when the regularly dripping water caused the floor under the fridge to buckle, along with the ends of the boards on the other side of the wall in the main entryway.
I did manage to successfully sue the installer to recover the cost of refinishing. Which I never did. Same trick of drying it out, light sanding, and a new coat of top finish. However, I had now redone so much of the floor that under the right lighting, from certain standing points in the family room, you could see the original and refinished areas quite clearly at that angle.
With that behind me, a few months later the dishwasher drain line burst and dropped a few more gallons in an area that hadnt been wet before. More buckling. More sanding. More top finish.
The house also had a small electric hot water spot heater under the kitchen sink for immediate hot water as otherwise you had to wait about 6 minutes to get hot water. Its overflow valve became stuck and it turns out it wasnt very tight. Pressure built up and guess what? Leaked onto the floor while i was at work.
Several months later, I was sitting at the kitchen table (thank god) when the improperly installed compression fitting on the hot water pipe under the sink let go, lets not even go to the place where a compression fitting shouldnt be used in an application like this. Picture me diving under the sink to see that the fitting that let go was upstream of the turn-off valve, with the sudden realization that it was the hot water pipe and that nice cool water hitting me in the face was about to turn into 140 degree+ water (hot water heater turned all the way up, else my whirlpool tub for two in the master suite wouldnt take a full hot fill).
Yes, I teleported backwards about 10'. Nothing else would explain the sudden change of location.
By the time I got out to the main valve and closed it, I had about 5 gallons of nice hot water on the floor.
Then the old cat we "found" when we first moved in hit (i'm guessing) about the 19-20 year old mark and no longer cared about the whole 'cat box' experience. Any place on the wood floor was a-ok.
Usually by the time I found it, it had permeated the finish somewhat.
Then I met my current wife and her dogs. Fair game was to hear something in the back yard, go racing down the stairs, skid sideways around the corner at the bottom of the stairs, skid into the island in the center of the kitchen, skid around the corner and out the back sliding door to see what it was. After a couple of years, we had a nice trail of skid scratches in those spots.
Oh yeah...this was the special finish thats usually applied to gym floors and commercial applications, that i had to get the guy from over the state line to come in and apply. None better.