A couple spring to mind : firstly a practical joke hubby, myself and brother-in-law's wife played on brother-in-law. Long before water metering was a reality, we gave him a a letter purporting to be from the water company, saying his water was going to be metered. At the time he had an enormous fish pond in the garden and water being filtered /renewed in it. It wasn't that funny a joke, but his apoplectic fury was hysterical to watch, and then further side-splitting laughing at his fury at the 3 of us when he realised he'd been had!
The other was when my son and I, son then in his late teens/early twenties, saw the local nosy old bag who used to walk her dog up our street while having a good nose into people's front windows. Son and I looked at each other, and burst out into a loud rendition of Lionel Richie's son "Hello, is it me you're looking for" directly at her through the window. She huffed and shuffled her bosom (think Les Dawson) and scuttled off up the road. I think son and I were nearly in need of dry underwear. The said nosy old bag didn't do it again, and years later I still chuckle at this childish but satisfying naughtiness!