A 15-inch MacBook Pro has shockingly caught on fire in a user's house, resulting in catastrophic damage to the laptop. The spontaneously combusting Apple MacBook Pro was a model from the 2015 lineup, which was infamously banned from some airlines because of the battery being a potential fire hazard.
https://www.notebookcheck.net/Spontaneously-combusting-15-inch-MacBook-Pro-gives-user-shocking-wake-up-call.583134.0.html
Swelling battery is also a common problem for earlier Macbook Pros. I have one of the 2013 15 inchers and the battery swelled up against the trackpad making it impossible to press. I guess it could have pierced itself if it kept on swelling and then ruptured. The result would have looked like this.
You are charging it wrong!
Quote: "Fumes issuing from the melting plastic case of the laptop..."
I thought that model is aluminium!?
The part about the battery being previously serviced in the recall program is not true. The OP mentions multiple times in their post's comment section that they bought the laptop new and never sent it in for battery replacement. That's a really important detail that should be corrected. I freaked out after reading this article because I also own a 2015 macbook pro with a replaced battery.