lemme get this straight..
..yer maw-in-law paid ta have yer plumbing fixed? yer wife okayed it?
divorce the squeak.
gimmie her number, we have a future.
or.. you ain't learned jack about mind-diddly in 11 years of marrige? if i was was annoyed as you are, I'd pop in at the inlaws house when they ain't home and repaint some room that needs it a hideous shade of purple. then leave 'em a note:
"thanks for helpin out with my place.. i still have 5 gals of this paint left; i'll be back tomorrow to finish up in the living room and kitchen. love, yer happy son-in-law."
Don't get mad.. get even.