Dangling modifiers are separate from the word they modify, resulting in ambiguity, confusion or nonsense. In the example sentence, it is not clear which animal is walking the wire - whether the dog or the squirrel. Supposing the squirrel (which is about to fall) is walking the wire, a correct version of the sentence would be:
My dog waited for the squirrel to fall, which was walking the wire.
If you are organized things will be much more easier for you. You will be more responsible with turning in work and you’ll also be more focused and know where everything is at.