Finney:

-Any type of bugs

-He will run away faster then he did when he escaped the grabber

Robin:

-Loosing a fight

-He is scared that he won't be the second toughest kid in school if he looses (Vance doesn't die)

Vance:

-Loosing his mom

-He is terrified to loose his mother if she died he'd prolly commit

Bruce:

-Getting hurt in baseball

-He is scared he will loose his reputation if he gets hurt and has to sit out

Billy:

-Anything

-I mean he would cry over pretty much anything