Mengel agreed to the action and donated blood, but decided not to actually pour blood; instead he distributed the paperback Good News for Modern Man (a version of the New Testament) to draft board workers, newsmen, and police.
Mengel agreed to participate in the action and gave a symbolic gesture of support by distributing literature; he chose not to actually give blood; instead he handed out copies of the Good News for Modern Man (a version of the New Testament) to draft board workers, newsmen, and police.