I noticed when I slammed the trunk of the old 52 Chevy deluxe trunk shut all the sunfish and bluegill jumped out of the water. INTERESTING.
stuff like that is weird...we had a covered lighted dock on Lake Fork here in Texas and every time we turned the lights off at the end of the night....instantly the water would churn for like 3-5 seconds....not sure why or what was going on....but fish would immediately hit the surface for a few seconds when lights suddenly went off