We work in a highly-skilled role in a demanding, high-workload, killer deadlines, high-accuracy requirements, heavily regulated, ever changing but also friendly and supportive office environment. We are freaking lucky: No politics in our department. Our colleagues are pretty darn understanding. Though they don't know we are a System they understand that we have some "anxiety" issues. Our manager knows we get flashbacks and is very understanding as had traumatic childhood too. So we lucked out big time basically.
The job is demanding to say the least but equally rewarding. It's varied enough so there is an aspect suited to each of the ANPs. Though some of us do miss manual and customer facing work. Generally Mal, Odessa and Rae go to work. Sometimes one of us will come Out for a specific task, sometimes one of us will stay Out all day.
We are also lucky in that we lose very little time outright (a few minutes here and there.. whateva) and share many skills. Generally we have a vague sense of what others have done, we just haven't got much detail.
We keep calendar reminders galore - leave each other notes and step by step guides for tasks others might not be familiar with. Some simple tasks we save up for days when we are capable of nothing else. Luckily our manager is very understanding of the concept of "off days" where complex tasks are not an option and does not mistake this for laziness.
Now that we are in closer contact with our younger System members, we carry small toys we can hold in our hand without garnering too much attention from colleagues for when we get overwhelmed and the Small ones are close to the Front. Luckily we haven't really had the kids come Out unsupervised. I say "not really" because before we were fully aware of being a System we have had a couple of close calls, angry outbursts, over-reactions.. not since the very beginning of the year though. So fingers crossed. No written warnings yet - I have worked in this role for a few years and we have messed up - but these outbursts and "out of character" behaviour is infrequent enough to be put down to stress and thus far.. forgiven :S
They do come out though, the Littles. But we are lucky (once again) that there is always at least one adult close-by who is able to take over if the $#%^ hits the fan. Generally though we are able to ride it out rather than push the kid back inside. They don't come out unless they are feeling absolutely terrible as they know how important our job is. So I just leave them to hold on to their favourite toy until they are ready to go back Inside.
We have two System members who think of themselves as adults some days but are, for the most part, children (Inside you can watch them grow and shrink depending on their emotional state.. it's intriguing). So they may come out for short periods at work and actually perform simple tasks all the while holding on to a toy.

Of course this is also where we get emotionally volatile and the Part "riding shotgun" has to be really careful we don't end up getting ourselves in trouble. This only becomes a problem nowadays if we are unaware of the Switchover and don't notice Idris or Mara are Fronting until they go into meltdown mode.
Funsies.
I'm Mr. Meeseeks - Look at me!