The nurses on my floor are very busy, I'M very busy, and we're the night shift. I lucked out that we all realize that we're not lazy and we don't bite each other's head off over anything.
A incident that got corrected REAL quick:
I went to all 7 nurses and said that i was going off the floor for my 30 minutes, and every single one said ok. Ten minutes later a nurse came 4 floors down to a break area to tell ME when i'm off the clock that her pt. is wet. I had 20 minutes left off clock, and i simply said "You checked your pt., saw she's wet, get on the elevator, leaving the REST of your pts. alone, to come down here to tell my your pt. is wet? In the time it took you to get down here to TELL me this would have been the same amount of time to change her brief!" She replies "It's your job to do that not mine". Oh no it's not, because "you're the one ultimately responsible for your pt. so even if i get in trouble for not 'drying' a pt. when i'm off the clock, YOU will be just as liable, if not in that boat by yourself".
I float as a CA on a floor of 35 pts. I now have to have an extremely good reason not to take a lunch anymore, so now by George, i take my 30 minutes.
Any nurse that barges in when i'm in the middle of helping a pt., i simply say "right now i am busy. I will be a few more minutes. I'll be out in the hall by then." Luckily that never happens.
In reality my floor needs 2 aides even on night shift, considering we've turned into a glorified nursing home lately (our joking admission criteria: You must be over 80, have both MRSA and VRE, plus CDiff, be confused, cuss loudly, swear up and down you can walk when you can't, and climbing over bedrails). But corporate is way too cheap to consider it, and if i'm REALLY lucky, i can beg for an floor-assigned orderly to help me. When there's two of us, we can just start at one end of the hall and get all pts. dried without having to say to the nurse "can you help me?".
IOW, i feel your pain.