It's the football fan's ultimate fantasy: your team is desperately short of players due to some horrendous bad luck with injuries, and the manager beckons to you in the crowd thinking you look like a likely candidate to help out. You quickly don some boots, immediately shine - and end up scoring the critical goal.
For 20-year-old Sarah Crilly, that fantasy came to life in unbelievable circumstances when she went to watch the Scottish women's team take on Norway in an international friendly - and ended up on the pitch.
The home team was struck by injuries during the match at East End Park in Dunfermline, and Sarah - who plays for Hamilton Ladies and had helped out at the national team's training session the day before - was approached as she was queuing up for a hot drink at half time.
"I was standing with all my friends waiting on a cup of tea when the team administrator came up and asked if I had my boots with me. I didn't," Sarah told The Scottish Sun.
"So she took me to the changing rooms, and got me kitted out."
Not that kitting her out was easy: nothing in Sarah's size was small enough, but she wasn't about to let boots two sizes too big stop her turning out for her country in what was their It was final warm-up match before crucial Euro 2013 qualifiers next month against Wales and France.
"The shorts were way too big and baggy, and I was wearing three pairs of socks. I must have looked ridiculous."
At this stage the outsized kit didn't seem critical, since Sarah had been asked to sit on the bench only as emergency cover, since Scotland had lost one midfielder to injury in the pre-match warm-up and another at half time.
But when more injuries followed in the second half, and when Rhonda Jones had to come off with 28 minutes left, Sarah was given the nod and brought on.
And if her giant shorts and comedy big boots made her look silly, it didn't last long: with Scotland trailing 2-1 in the final five minutes, Sarah popped up to score an equaliser that secured a 2-2 draw for the home side.
"I was there for a day out with my pals — next thing I know I'm stepping on the park. It was crazy," she said.
"I couldn't believe it when I scored. It was incredible."
In a competitive match Sarah would have needed to be registered beforehand, but since it was a friendly the ref allowed her to play.
She certainly grabbed the chance with both hands, and from the sounds of things Stirling University student Sarah may have impressed enough that she could one day get another chance to star for her country.
Scotland boss Anna Signeul said that he was "very pleased with her," while Kevin Murphy, Sarah's manager at Hamilton, said, "It's thoroughly deserved. She works so hard for the club."