Two nuns were sitting on a bench. A flasher flashed them, and one of the nuns had a stroke... but the other one was too far away :)
Flasher and Nuns
Explanation
Explain Bear
Okay, so basically, there are these two nuns, right? And some dude whips out his thing, and one of the nuns gets so shocked she has a stroke. But get this—the other nun couldn't see it 'cause she was too far away. It's funny 'cause it's unexpected and kinda dark. And, uh, strokes aren't usually caused by flashing, but you wouldn't know that, would ya?