My Eevee recently evolved into a Flareon without my permission. (I don’t even know where he found a Fire stone) How do you care for a flareon without him burning down my house? I’ve never had a fire-type before.

Ah yes. Eevee can be quite tricky like that, especially if they’re particularly keen on one of their evolved forms.

That having been said, caring for a flareon is rather straightforward, anonymous. Use the exact same techniques as you had when your flareon was an eevee, just with minor alterations. For one, you will likely need more of everything: more food, more time spent training, larger toys, and so forth. Your eevee has spontaneously grown from a precocious, foot-tall ball of fur to an equally precocious, three-feet-tall ball of fur, and thus, you’ll want to accommodate accordingly.

The other change you’ll need to make is, of course, fireproofing everything. You may need to keep your flareon outside for the first few weeks. As eevee are not fire-types, yours has likely never wielded fire before now and will likely need some time to learn how. Giving him a safe environment away from your valuables and flammables would be the best way to do this. Just be sure that this safe area might also be shielded from the rain. (Perhaps consider giving him a place on a sheltered porch or building a specialized dog house on stilts or a platform to keep him out of the rain and away from yard flooding during rain.) Once he shows a reasonable amount of control over his new abilities, reintroduce him to your home carefully, but consider investing in fireproofing sheets (specialized, plastic-like sheets for new pet fire-type owners) to cover your furniture.

Best of luck, anonymous!