2000 ford escort zx2 electrical weirdness

This has only happened a few times to me,
and they've been slightly different each time
it does, but I was hoping to get a general
idea of what to look at. I have a 2000 ford
escort zx2 automatic with 150000 miles on
it. I bought it about four months ago, and the
previous owner had let it sit in the garage for
two years. I replaced the battery and had the
alternator checked, and had the oil pan
replaced after it cracked and had the oil
changed. The first time was I was on the
express way using cruise control, I tapped
my brake to turn off cruise control and all my
interior electronics shut off for less than a
second and came back on. The second time
was I slowed to turn into a parking spot and
my engine shut off, not sputtered or
anything, just shut off, along with all the
electronics. The third time was I was exiting
the express way and as I pressed the brake
to slow to a stop, my electronics(radio, AC,
dash lights) all shut off for a second, then a
low fuel signal showed for a second and
they all came back on. This same thing
happened two more times while in park
when I pressed the brake before I planned to
shift into reverse, but hadn't touched the
stick yet. It has only shut off the engine
once, but it's still concerning. Any ideas
would be appreciated.