Back in the 60's I recall being at a party where everyone had too much
to drink and some YL's car would not start. The 'guys' went out to help
and checked the battery water level. The guy doing the checking could
not see as it was dark and asked for light. He was talking about a
flashlight and a helping hand showed up with a Zippo lighter. The
battery exploded! Very lucky none were killed or blinded.