Dangling modifiers, crusty language arts quiz

What is a dangling modifier? 

Do it once more. While being really cool, Mr Rose made everyone impressed.

Find that modifier again. Sitting in detention, Camden stared at Mr. Wonderly's beard.

find it now! While riding down the street, Merrick licked his ice cream cone ;)

just find it again. Eating all the food in the fridge, he was depressed.

Find the dangling modifier... again... After making the best music, Dj Clem was proud.

Boss please find another one. While feeling a little crusty, Marcos made this quiz.

How good was this crusty quiz?

Which word is the dangling modifier? Running down the street, Donnie tripped and fell.

one last time. Being disgusting, Merrick rubbed the paper up and down.

What is this!? Jumping over the fence, Fido caught the ball.