to be annoyed at someone in my office who wears keys around their neck?

[Bennifer]

It just rattles every time she moves. I'm going to have to say something. I was tempted to say something sarcastic like "you'll never catch a bird with those keys around your neck"

No.

For no other reason than I want to kill around half of the staff at work at any given point due to their annoying behaviour.

So it would be unfair of me to suggest anyone else was being unreasonable for wanting to do the same!

YANBU. Annoying noise aside, it's just plain odd.

Tell her she looks like an arse

Has she only just been given them by her mummy and been warned not to lose them? (I last wore my key round my neck when I was 7.)

She is a young woman of 21, maybe it is an age thing

twenty one today, i've got the key of the door, i'm 21 today!

like my grandma used to sing, perhaps hers did too?

Perhaps she has issues with concentration and is prone to losing things. ds1 has adhd and is always losing stuff. I can see me having to put keys around his neck when the time comes.

I wear my keys round my neck when I'm out.
Dresses never have decent pockets (unless I've made them myself in which case they have) and I don't use a handbag usually.
It makes it much easier to get out when I'm holding a wriggling toddler, and it doesn't usually make much noise, although that's probably because I put them under my jumper.

YANBU at all! Tell her.

Just out of interest DeWe - why don't you use a handbag?

And OP it would drive me mental

21. Is it a fashion trend?

I wear my keys round my neck

But to be fair, I work in an office where everyone wears a keycard round their neck, usually with a key attached to it, so my addition of shed and bike lock keys (hopefully!) isn't too extreme.

I have noticed that people tend to know when I am coming though...