Colleague causing a massive issue!!

[WorkingMumOnTheGo]

There's a colleague in my team who was absolutely fine when she first started. But now she has started to become really aggressive and agitated towards everyone! She is not a supervisor or manager but she tells everyone what to do and checks our work to make sure it is up to her standards?! She shouted at another colleague when they asked her to do something, and she chooses where she wants to go and what she wants to do whereas we all usually allocate a different task amongst one another every day. She made up a rumour about someone in the work place and when it got to management they just told them to make up and get on with it! Its starting to really get on my nerves now she thinks she owns the place! Do I complain to HR? Its making everyone so miserable and we are all walking on egg shells cos it only takes one slightest thing to set her off and she starts slamming doors, drawers, trolleys, shouting and swearing!

She told one person who works here to shut her mouth when she was talking about something to another person! Not to her

Discuss with your manager.

Definately complain. Either that or get her alone in a corner and tell her to stop being a dick.

Aggressive behaviour and bad language surely goes against the professional ethos of most companies.
Make sure you have evidence of her behaviour including witnesses so she doesn't accuse you of making it up when you report her.

Start keeping a diary.
Talk to the others about making a mass grievance.
What I have found in these situations is that if one person from the group complains it’s often seen as clash of personalities or similar. But if more people put in constructive complaints it’s harder to ignore and brush off

Yes, start a diary. Everyone add to it so management don't fob it off as a personality clash between you and her. Dates, times, and, if you are customer facing, whether any customers/clients were present.

Take to HR when you have enough to show it is a pattern, not a one off.

Meant to say, she may be having problems at home or medically, but there is still no reason to be rude to others, especially as she hasn't admitted to any stress.

Can you talk to her in private and say something along the lines of you finding her communication style problematic and disruptive to the wellbeing of the team. You could say that you don't want to have to report the matter to management as it would be best if it could be resolved quietly and amicably in this conversation so that everyone can get on, we all have to work together so let's make in a pleasant experience etc etc.

Document the meeting and if matters don't improve, take it further.

Be aware of any allegiance this person has with Management. People often get stroppy and unbearable when they have Management on their side. They become unassailable. Do you think this may already be the case?

Be very careful about creating a group diary - it could be perceived as you ganging up on her and be twisted to actually justify her behaviour.

Knowing me I'd probably tell her to fuck off. Mention it to your line manager in the first instance.

all of you can't up on her and flush her head down the loo

Reddlion that's the best approach for someone like that

Thanks everyone! We are going to talk to the manager again. & lol at the flushing head down the toilet