Dangling modifiers are words or phrases that modify nothing else in the rest of a sentence. They often seem to modify something that is implied but not actually present in the sentence. Dangling modifiers frequently appear at the beginnings or ends of sentences.

To revise a dangling modifier, often you need to add a subject that the modifier clearly refers to; sometimes you have to turn the modifier into a phrase or a clause.

In the original sentence, was the dog reluctant, or was someone else who is not mentioned reluctant?

His grandmother was never a young boy.

Eyes cannot thumb through a magazine.