Each is considered "Crit-One-R" -- meaning a cable and its twin would have to both fail to make for a really Bad Day.

CNN: Challenger explosion

"We played the world champions and...you feel like you are not too far away and you are not turning up thinking 'let's hope we have a really good day and they have a really bad day and we've got the chance of causing a major upset', " Gatland said.

BBC: Wales fail to buck losing trend against Boks

Baseball players deal with temperature variations between April and October, but any really bad weather day means a postponement.

FORBES: The NFL's Coldest Games

If you are really having a bad day call your school friends or former colleagues in corporate jobs and ask them to come with you.

FORBES: How Entrepreneurs Can Beat The Holiday Blues

And the next day can be really bad.

FORBES: Avoid the Oracle, Best Buy Hangover - Don't Stay at the (Holiday) Party Too Late