Poor guy - he's really been traumatized by the whole thing, and that's pretty understandable. I think if I had gone thru what you and the kitties did, even tho the fire wasn't in your building, that I'd be ready to move somewhere else.

Some animals seem to be more sensitive than others, and what bothers some, is no big deal to the other guy. Several years ago, we had a really bad electrical storm, and since then, Sparky has been terrified of them. Every time he hears the slightest rumble of thunder - he's in my lap - or if we're in bed - then he has to get under the covers. Myndi isn't phased in the least by storms!

Just give Diego extra lovins and attention, and he will probably get over it in no time. Once he's over what appears to be a fear of the alarms, he should settle back down.