Use "curmudgeonly" in a sentence

1. The wife travels to see her sister, leaving her curmudgeonly (great word, look it up) husband in charge of the house and much loved cat

2. It was not just that he wanted to please Caris, and atone for his curmudgeonly attitude

3. It had a curmudgeonly fuel transfer valve that Pillsbury and Douglas had to finesse into place, lest it stick wide open, slow an engine, or trigger a deafening backfire