Happy hour is intended to be jovial and relaxing, and can be an important tool in creating a bond between groups of co-workers. However, despite the best of intentions, there are some "unhappy hours" where the good times can quickly turn bad.

A CareerBuilder.com survey offers a snapshot of America's happy hour habits and a number of incidents and events where a worker's happy hour experience went from smooth sailing to crash and burn.

# One in five workers attends happy hour festivities with co-workers at least once a month.

# Eighty-two percent go to bond with co-workers, while 11 percent go specifically for quality time with the boss.

# Fifteen percent of the attendees were all about the office gossip.

# Men and women were equally likely to attend.

# Workers ages 25 to 34 had the highest attendance across all age groups.

# Sixteen percent of those who responded said that they talked negatively or inappropriately about a co-worker or manager.

# Ten percent said they shared a secret or confidence about a co-worker.

# Eight percent kissed one of their co-workers, and another 8 percent admitted that they drank too much and acted unprofessionally.

# A surprising 5 percent breached a confidence or secret about the company.

# And 4 percent of workers admitted, with regret, that they sang karaoke.