I can't make things spontaneously combust, but I have Personas that can set things on fire.

[Which is pretty close to spontaneous combustion. He takes a bit of the rice cake now that he's decided against trying to turn it into popcorn onigiri right here on the spot.]

I haven't seen you around in awhile.

[He's sure Crowley's been around--it's hard to completely fly under the radar here.]