I don't have ADHD but my friend does and she can't keep jobs as she doesn't like being bossed around or forced to focus on something she doesn't find interesting. Her mother however is self employed which makes it easier to sustain work and is medicated, other than that she would most likely struggle to keep a job. Your boss might/might not have it but you CANNOT confront him about it if you suspect he has it, i have learn't the hard way of this (my friend is called the blonde bombshell for a reason lol) and you could risk losing your job.

Easiest way i handled it (cause my friend is not medicated) is to kill em with kindness, so anytime your boss is in a bad mood or not on form so to speak just be polite and go get some air cause if you retaliate the situation will escalate like wild fire.

Best things to do:
- always be kind
- encourage them to make notes/lists to follow throughout the day
- timers are suppose to be very useful as ADHD'ers don't do things based on a timed structure so having a stopwatch or clock to keep them on track will be useful
- my friend doesn't like being helped as she wants to do things herself however struggles to do so, in which i will then step in and say how is it going, where are you up to, are you on track and if she is so far behind that she will get in trouble for it then i step in and help so checking up on them is very useful as you're helping by not helping them or taking over if you get me
- be positive
- maybe subtly mention ADHD and see how he/she responds but don't be direct talk from a third person point of view
- be encouraging cause ADHD seems incredibly tough to deal with when you're not medicated
- depending on how close you are maybe hang out with them after work and get to know them better (giving you an opportunity to mention ADHD)
- don't come across threatening, condescending
- don't jump to conclusions quickly otherwise he/she may get defensive
- if you see them making a mistake or error gently tell them something like "maybe instead of doing it that way it might be better this way" so it doesn't come across negative or like he/she is 'wrong again' or 'inadequate'

I have noticed that self esteem is veryyyyyyyyy low with unmedicated ADD'ers so any slight negative feedback will bring back a flood of memories where they have been told they are wrong, unable to do things etc

Just be gentle but not patronising and be there to talk to cause it isn't easy being friends with an unmedicated ADD'er however it will be twice as hard for them not understanding why they can't always reach their full potential or do things we take forgranted so always be kind no matter how bad it might get just be supportive.

Everyone needs someone to support and be supported by and who knows you may get a promotion etc

Good luck

Claire