There’s a man standing on the edge of a bridge, peering into the river below and shaking as he clasps and unclasps his hands.
I have never seen him before. I step forward instinctively. He hears me edging closer and shouts.
“Don’t come any closer, or I’ll jump!”
My heart races, I'm frantically trying to think of what I’ve been taught but my mind is going into panic mode and it's blank.
Because I know that in that instant, I could be the person that saves his life.
Except he's not standing on a bridge, it’s a class table. And behind me in the room is 15 or so people sat on chairs watching the sequence of events unfold.
This is the final part of the Applied Suicide Intervention Skills Training (ASIST) course where those who have enrolled are assessed on what they’ve learned over their hours of training - to try and intervene if anyone is considering suicide.
It first began in 1983 by LivingWorks company for people over the age of 16 and today, many who complete it are policemen, social workers, councillors, teachers and mental health nurses who feel they are not equipped enough to deal with a scenario which they face only too often.
According to the Department of Health, 2015 statistics show that the number of UK deaths by suicide rose to 4,727 suicides recorded in 2013, 214 more than the previous year.
'Asking one question did not seem like the way to save a life'
The first question I was asked on the ASIST course was whether I would ask someone who was feeling depressed whether they were thinking about suicide. The nurses on my course looked horrified at the idea, saying it would "plant the seed".
After some consideration, I said I guess I would, out of concern - and it was apparently the right answer according to ASIST course leaders.
It turns out that statistically, those who open up and talk about it, feel relieved and this can have a major effect on their next actions.
The key takeaway from the course was to always start by asking if someone was OK. Initially I thought it was ridiculous, "are you OK?" did not seem like a way to save a life.
But then it slowly started to make sense as the class shifted uncomfortably in their seats when asked how often have we seen someone looking upset, whether it's at a bus stop or a stranger in the office and done nothing about it.
Of course the learning curve of the course after this was more complex, but it started with that one simple question.
Discussing suicide is still uncomfortable, harder still for those who have lost someone because of it.
I can still see the faces of my secondary school year group as we were told that someone we knew had died from suicide. There are some things for which words simply don't carry enough weight and those few weeks were indescribable for those who were close to him.
Some things aren't preventable and take a great deal of medical training.
But perhaps as a society, if we were more inclined to look out for one another, collectively take responsibility for wider issues which could lead to mental health declining rather than turn away from it, we could make it better.
Or even if we simply ask that one question, it could be the first step in making people feel less alone.
It could be the thing that saves a person's life.