I've been continuing to integrate Dot and Buster.  Megan recently
suggested to me that since Dot has been avoiding Buster, I should take
steps to actively introduce them.  I'd been thinking the same thing,
as it was pretty clear Dot wasn't going to take the first step.

The first thing I tried was putting a harness on Buster, and bringing
him to Dot.  When I tried this, Buster squirmed around in his harness,
Dot hid behind the desk, and the furry little snake freed himself from
the harness and ran away.

So next, I tried carrying Buster in my arms past Dot, and also playing
with him occasionally while Dot watched from a distance.

During this time, I started to become more lax about keeping the two
apart.  Before, I always kept two doors between the two while I was in
the process of switching them or going between their zones, sort of
like an "airlock", so that there was no chance of one dashing past me
into the other's area.  I stopped doing this and just used one door,
because I noticed that Buster's not all that interested in Dot, and
they're both easy to handle and separate by hand.

But twice, Buster has gotten past me and confronted Dot.  The first
time, I had gone to the bathroom, and Dot's room's door was ajar.
When I came back, I found Dot in her bed, growling at Buster, and
Buster nose-to-nose with her, murping and sniffing her.  I picked him
up and carried him off to play with the cat dancer.  Another time, he
wove past my legs and dashed up to Dot again, stopping just a couple
of inches from her.  Dot hissed.  Buster sniffed her curiously.  I
picked him up and carried him away again.

It occurred to me that on that first day home, Buster may not really
have been chasing Dot.  He's always in a hurry, and will just dash up
to anything that interests him, whether it's a sound, a window view, a
toy, or me.

Anyway, while all this was going on, I hadn't given up on the harness
technique, as I had gone online and ordered a walking jacket for
Buster as soon as he squirmed out of his regular harness.  I received
the walking jacket today, and Buster is now wearing it.  He doesn't
like it any better than the regular harness, but he can't escape from
the walking jacket. :)

I played with the two of them while Buster was under control with the
jacket and leash.  Dot was on the tree, on high ground, looking down
at the poor fashion victim.  I played with the two of them,
alternately dangling the streamer down by Buster, and then bringing it
up for Dot to bat at.  I'll keep doing this occasionally.  Maybe
someday they'll play peacefully together without Buster being on a
leash.