Frankenplot Had Two Correct Entries!

I am pleased to report that two individuals were able to figure out which three novels created my Frankenplot! 

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The two people will remain anonymous but I invite you to comment on your submission, if you wish.

This was my Frankenplot (did you figure it out?):

"Three friends who are convinced they are dying of every disease known to man decide that a boating holiday up the river will cure them. They pack far too much luggage, argue constantly about who is doing the most work, and cannot figure out how to open a tin of pineapple. At a riverside inn, one of them goes under anaesthetic at the dentist and wakes up in the body of a child. His companions do not believe him... they assume he has been drinking and continue upstream without much concern, dragging the child along and feeding him cold sandwiches. When they finally reach the gloomy farm of a distant relative, they find the household paralyzed by an elderly woman who has not left her bedroom in twenty years because she once 'saw something nasty in the woodshed.' The friend trapped in the child's body is immediately put to work tidying up the family's various romantic entanglements, which he does with surprising efficiency, while his original adult body (now occupied by an actual child) has been punching people up and down the riverbank. By the time things are sorted out, it has begun to rain, and they abandon the whole enterprise and take the train home."

This odd Frankenplot was stitched together using elements of these three novels:  

Three Men in a Boat by Jerome K. Jerome (1889)
Laughing Gas by P.G. Wodehouse (1936)
Cold Comfort Farm by Stella Gibbons (1932)

Thank you to everyone who guessed at this riddle. This was fun, right?

Perhaps, we can do another Frankenplot together real soon.