Most road signs are pretty boring.  They convey their message without emotion or opinion.  So I was surprised to see a highway sign that said “Don’t be fooled — 4 more miles of dangerous curves ahead.” Whoever designed this sign made a smart decision.  I’m guessing they were faced with stats showing a lot of accidents, despite the usual signs telling people to be careful. So they decided to do something different.  This small amount of personality makes the sign instantly memorable, and probably a lot more effective.