Someone spilled wine on my 4-month-old, AppleCare-covered MacBook while it was being used for a live show. It stayed alive to the end of the show, then immediately died. Apple charged me $800 to have it fixed. I had to have it repaired twice again after that (both of those were free, since the previous two repairs had been wrong.) During and after that, the battery failed and needed replacement four times. The last time, the Apple Genius told me that batteries are not covered after the first year, so I would have to pay for it myself. He looked at the repair history on the laptop and had sympathy, and replaced it for free.
To this day, the laptop does not work correctly, even though every individual component has been replaced at least once. Also, they made a typo when setting the serial number on the motherboard, which I had to tell Apple each time I had it serviced, since it didn't match the one on my AppleCare plan (replaced a B with an 8.)
Of course, the laptop had been working fine until a drunk hipster dumped box wine all over it. I wish the repairs had been perfect and free, but they weren't. I've gone through a lot of Apple products over the years, and this is the only one where I've had problems. All of the ones before and after have been fine, and this one had been fine until the wine.
Anyway, this is just an anecdote. Don't expect your own fuckups to be covered under AppleCare. It's an extended warranty, not insurance. If the parent is telling the truth, then he's an exception, not the rule.