Work colleague

[Walkingdead11]

I work with a man who has ADHD. This week he berated me in front of a customer, to the extent that the customer got involved in calling him out on his behaviour. This has been an ongoing issue for 2 years, he is argumentative, belligerent and controlling. He is my equal at work and this last incident has tipped me over the edge and I am off with depression and stress. I do have other issues going on at the moment and simply cannot cope with this man any longer. My manager is of the opinion that this man is annoying (he gets annoyed too) but that the man in question cannot help it because of his condition and I need to sick it up and ignore him.....I can no longer do this. What can I do? I love my job and get on with everybody else.

If he has threatened her, shouted in her face or punched her in the face as someone suggested. well then of course it wouldn't be acceptable and would need dealt with

Yes, I saw it the first time you wrote it.

The OP has made it extremely clear since her first post that his conduct has now caused her to become ill. Even although it might not amount to physical assault, threatening, or shouting at her, it can still amount to bullying and harassment .“Oh well, he’s got ADHD and can’t help it so you’ll just have to put up with it because we can’t do anything about it” is not an acceptable response on the part of management.

They might need to watch that by being so cautious with the employee with ADHD they don’t end up on the wrong end of a constructive dismissal claim by the OP.

And I don’t agree with this either

IF those behaviours are attributed to his ADHD and they do that then they would be disciplining him for being disabled. That is illegal.

(WRT to disciplining him)

He’d be disciplined for his conduct, not because he has a disability. Sure he may be able to argue that disciplining him for his conduct is discrimination arising from disability but the employer would be able to try and objectively justify that by showing that this was a proportionate means of achieving a legitimate aim. The legitimate aim being stopping this conduct at work towards colleagues and I think after telling him to stop and him not doing it, issuing disciplinary action would be reasonable. I am not saying they should sack the guy right away but don’t see any reason why he should be Teflon coated.

*taking disciplinary action

It's a bit like saying a husband ptsd who beats his wife up isn't responsible for his behaviour....he'd still end up in prison.