Meter underneath player

[wdwvision]

When a player is selected, there are two meters that are shown. I know that one shows how much of the speed burst you are currently using (although it doesn't show how much is left...), but what is the other meter?

The other meter seems to become more full when contact is made with an opposing player. What happens when this meter becomes full?

Can anybody help me out?

[beltranfan05]

I think it measures how frustrated that player is. Or if it gets full, they become intimidated. But, I'm pretty sure it is the first one. When it is more full under enforcers, they get away with more.