Jim, Others may be confused. You agree that a completely disconnected plug won't produce ignition? If inj connector is completely unplugged then where did the spark come from? Do you not believe hot exhaust is a possible ignition source?
As far as tampering, I have managed to leave both the QD and the Inj plug not totally connected. Only ran with the QD connected but not fully locked
Lets get back to prevention:
1. always shut down, don't idle. A fuel leak in motion is not nearly as dangerous as one at idle
2. replace rubber hoses every (3-4?) yrs when they harden crack
3. inspect black nylon fuel distributor (daily?) replace it every (_? months) or whenever it shows signs of (_?)
4. install automatic foam deployment system
5. can you live w/o QD's
Or, Non of the above, just wear fire resistant clothing?