What does the little sign mean?

[RedHead]

In just about everyone's post there is a little sign next to the scale with exclamation point in it surrounded by red & white. But I don't have one? Any guesses?

Sheesh...the things that you think about on your lunch hour at work!

 

[Jane]

 

[nicolethefantastic]

 

[AnnMarie]

 

[ripley]

 

[nicolethefantastic]

 

[RedHead]

 

[Wayne_Zitkus]

 

[swamptoad]

 

[RedHead]

 

[Wayne_Zitkus]

 

[Wayne_Zitkus]

 

[Jane]

 

[HailToTheKing]

 

[RedHead]