I am friends with the admin assistant at my job and she vents to me ALL the time about this type of stuff! The manager's office is right by the front desk and all day we can hear him throughout the office saying "Amaaandaaa! I need a pen!" "Amaaandaaa! Give me this phone number!" "Amaaandaaa! Did you send out the reports?" and on and on and on... I don't know how she doesn't go crazy! When our manager is in a bad mood, she always gets the worst of it. She's right there for him to yell at and blame things on!
She has also vented to me a lot about the kitchen cleaning situations too! Luckily I don't eat lunch here, and if I do I bring my own utensils

But the people who don't just leave everything in the sink and complain when it's not clean the next day.
Sometimes I feel so bad for her, I feel guilty when I ask her to do something for me. I'm like "I'm sorry, but when you get some spare time do you think you could maybe order some ink for me? No rush!!" lol but she's really good about it and handles the job very well.
I have a lot of respect for admin assistants!