change, and interrupting

However good or bad a situation is, it will change.
~ Advice

With a stop light, green means "go" and yellow means "slow down". With a banana, however, it is quite the opposite. Yellow means "go", green means "whoa, slow down" and red means "where the heck did you get that banana?"
~ Mitch Hedberg

Never interrupt your enemy when he is making a mistake.
~ Napoleon Bonaparte (1769-1821)