Dude, I feel for you. I experience the exact, if not, almost the identical situation that you face.
I'm not the most senior, but for sure I'm the only male in the lab (include the PIs as well). when there is problem:
Computer crash: I had to be the technician to restore the system
GelDoc not working: I had to inform them "to turn on the switch"
pipettor spoilt: I had to change the O-ring for them
buffer not enough: prepare for them
distilled water not enough: carry a 10 liters water few labs away from the media room
gas run out: I have to carry the gas barrel away for replacement
chemicals not enough: I have to request quotation and do the purchasing
Not forget to mention: those "mates" even hide knowledge without sharing with me, hogging the PCR machine and hoods, and even hide equipments for their own use without sharing!
I do agree with you that there should be a fine line between helping someone and doing all the work, but seriously in some situation we are always asked (forced in reality) to cross the border. We had our own work to do and everyone should be responsible in maintain the lab and definitely not a one "man" job.
So, what do I do: I can't do even a single thing! I had to leave them alone, more consistent do my work and pray hard that I finish my work in time so that I can escape from the HELL ASAP!
Dude, U got my support, so as the support from others in this forum. Cheers and thankgod that you are going to grad and leave the lab but for me, i'm still inside the tormenting hell.
Expecting the world to treat you fairly because you are a good person is like expecting the lion not to attack you because you are a vegetarian.
..."best of our knowledge, as far as we know this had never been reported before, though I can't possible read all the published journals on earth, but by perform thorough search in google, the keywords did not match any documents"...
"what doesn't kill you, makes you stronger"---Goddess Casandra reminds me to be strong
"It's all just DNA. Do it."---phage434