Swollen or bloated batteries are not exactly unheard of, but in the Apple Watch they can supposedly also cause serious bodily harm, which is why the leader in the smartwatch market now faces another lawsuit in the United States.
https://www.notebookcheck.net/Apple-faces-lawsuit-claiming-that-swollen-Apple-Watch-batteries-can-cause-significant-injuries.583961.0.html
Huh, you can only claim damages for your losses (i.e., what already happened), not what *could* have happened but didn't. That's just not how it works, and trying to present it otherwise is pretty telling of this case merits.