Once, in Joliette (province of Québec, Canada), I was walking by night (about 11 PM) near a large mining stone pit belonging to the Lafarge Cement company. I saw about 8 to 10 little white luminous balls floating around just over the paved surface. I did not hear any sound. They did not fly in a straight line, not fast, and their motion had straight lines then a sudden change in direction followed by another straight line then a change of direction and so on. Sometimes one went upward then came back down. The low speed, the changes of direction without being near any electrical conductor, their changes in height, all this showed me they were not ball lightnings (furthermore there was a starry sky and we did not have any thunderstorm the preceding days). At two occasions one ball came near me, turned around me, then went back into the pit. Sometimes they disappeared behind the buildings in the pit. I noticed that, when they flew close to something (the paved bottom, the building walls etc.), they did not illuminate that thing, proving they were not very bright. When they were near me, I did not see any intense brightness neither. Then three of them flew away at very high speed without any sound while the others remained in the pit. After about half an hour watching them I walked home.
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