🚀 go-pugleaf

I had a strange crash happen last night that I have been unable to reproduce.
In an effort to prevent it happening again, without removing all the goodies
from my system, I'm looking for some advice.

On a MacPlus, I was running MacWrite 4.5, with System 4.2.  I had Finder 6.0
installed, as well as the following INIT's:
Macsbug 5.4
Backdrop 2.16 (with two files in a "Screens" folder)
ShutDownSound INIT (as posted on the net recently: "I'll be back")
MenuClock 3.0
Pyro 1.0
Suitcase 1.0
VirusWarningInit (as posted on the net recently)
and various INIT's for MacPascal V. 2.1 (not including PShell)

Here's what happened:  As MacWrite was up (editing a ~3 page document),
I left for a little while, so Pyro kicked in.  When I moved the mouse to
get the screen back, the machine went into Macsbug.  Unfortunately, I
didn't have the presence of mind to write down what Macsbug told me.
Hitting the tilde key showed that the MacWrite window had returned, but
the text hadn't appeared yet.
	As I said, I have been unable to reproduce this crash.  With an 
identical system folder, Pyro kicked in and then returned just fine.

Any clues?  Do I need to delete all the INIT's from my System folder to
insure my safety, or is there a specific one that I could safely assume
was the culprit?  I'd hate to lose all my data in the middle of writing a
term paper or a program, but I do get a kick out of all the fluff I have
loaded in.

Thanks in advance.

Joe Hellerstein