With Bob (BOB?) serving as the grammatical subject of the sentence and both its finite verbs, there can be no real question that Bob is also the subject of the participle saving, i.e., the one doing the saving, which is presumably what is intended. A participle dangles only when it lacks such an apparent and appropriate subject. So no, this participle does not dangle.

With Bob serving as the grammatical subject of the sentence and both its finite verbs, there can be no real question that Bob is also the subject of the participle saving, i.e., the one doing the saving, which is presumably what is intended. A participle dangles only when it lacks such an apparent and appropriate subject. So no, this participle does not dangle.