お願いですから ('I'm begging you, please') is an intensified plea. 犬猫扱い ('dog-cat treatment') means 'treating someone like an animal' — dismissive, subhuman handling. やめて貰えますか is a polite request using ~てもらえますか ('could I receive the favor of your stopping'). The mix of desperate pleading (お願いですから) with grammatically polite request form creates pathos.