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In addition to @Liam's fine answer: The usability of both chalk and shoes will be severely limited while wet, e.g. friction is extremely reduced and you will slip. Chalk will lump. Your shoes will...
Answer
In addition to @Liam's fine answer: The usability of both chalk and shoes will be severely limited while wet, e.g. friction is extremely reduced and you will slip. Chalk will lump. Your shoes will...