Yeah, I had a cheap Sansdisk mpg player that went through the wash
and the dryer. When I found it, there was obviously water behind the display screen and it wouldn't turn on. I set it down for several days and picked it up again and found that it worked fine and I still had my 4 gb's of music intact. Lucky me!
In the seventies, I bought a 35mm Pentax SLR film camera. It was near the bottom of their line, but still, I could barely afford it. I used for a few mountain trips and then about a month after I bought it, I had an unfortunate creek mishap and it was completely submerged. I was so sickened. I knew I could never afford to replace it. When I opened the film compartment, it was full of orange water (from the film) that stained the inside of the camera. It was now dead weight and I was early in a week-plus trip. I spun it around my head and
very nearly let it fly into the nearby river. But, I'm not a litterbug, so I kept it.
That evening in camp I took a clean bandanna, and wiped it out as best as I could. I cocked and tripped the shutter dozens and dozens of times at every speed. More water drops would appear on various moving parts in the film compartment and I would diligently wipe them off. The next day I continued the routine in the warm sunshine. Cocking, tripping, and wiping. The water drops eventually stopped appearing and I decided to load a roll of film into it and start using it. I continued to use it for the rest of the trip- not knowing if it was really working or not. I would have to wait for the film to be processed to make that assessment. The pictures turned out to be fine (except for my own lack of talent

) and I continued to use that camera quite frequently for another seven years. Again, lucky me!