I'm an RN... but it matters not.
I run into this QUITE often as an agency nurse.
But... I don't tolerate poor behavior and lack of attention to residents... period. I work my tail off, and I make sure that the CNA's/PCA's/PCT's/CMA's all see it. I give them specific expectations, and I make it clear that we can all have "fun" on this shift, IF everyone follows MY rules. If not, we'll have words.
I'm semi-famous at one particular facility for saying to a lazy, loud, obnoxious, mean CNA, "You are worthless as a pimple on my left buttcheek. Clock out and get out of here. I'll do your work, and it'll be easier for ALL of us without you here." The CNA defiantly flipped me off and said some choice words and threats that I'd never be allowed back and then stormed out. Immediately following was a burst of laughter and clapping on the part of the remaining staff. The tone of the staff completely changed and we had a great night. We actually had plenty of staff that shift, so no big deal staffing wise.
For what it's worth, the CNA was fired the next day and I've been returning to the facility for fill in shifts going on 2 years now by request.
Revenge is sweet and sometimes well deserved.