Okay I’ve seen this mentioned a couple times but
If I’m not mistaken (tumblr historians fact-check me) Merlin was just given a shit ton of jobs he absolutely would not have to do in a properly functioning castle.
Arthur’s laundry? Laundresses.
Mucking out stables? Tacking horses? Stable Master and Stable Boys.
Scrubbing floors? Housemaids/Maidservants.
Delivering messages? Pages.
Sharpening weapons? Squires and Blacksmiths.
Taking care of Arthur’s wardrobe? Chamberlain.
Not even to mention that as the literal Prince’s Personal Servant he had wayyyy more power in the staff hierarchy than I think he ever realized.
Arthur just looked at this poor farmer-boy peasant who had never even seen a castle before in his life and decided to give him the work of 6 different people, just to be petty, correctly assuming he wouldn’t know any better, then proceeded to keep that up for like 10 years.
Merlin: *slams open Arthur’s door*
Arthur: Merlin? You alright there?
Merlin: I’ve just had a lovely conversation with Elizabeth, the Laundress
Arthur: *with fear* …Okay?
Merlin: You know what she said to me?
Arthur: Do I want to know?
Merlin: She said “Oh Merlin, I just don’t know why you insist on doing all that extra work for Arthur!”
Merlin: When were you going to tell me what The Prince’s Manservant actually does???
Arthur: Uh… You see…. But you’re just so good at it all!
Merlin: *eyes glowing* You should run.
Arthur: *standing up* I should run.