"They summoned a rabbi to say the viduy with a wealthy old lady, who was seriously ill. After it was over, she leaned toward the rabbi and asked: 'Rabbi, can I still have a glass of water, or must I die now?'" (Glinert)

"As the renowned sceptic, Yisroel Ostrin, lay dying, a pious friend came and pleaded: 'Yisroel, Yisroel! Say a viduy!'" (Glinert)

"During the Viddui, worshipers gently beat themselves on the chest for each transgression listed." (source)