Daniel Su'A only caught his son cutting corners once.
Every afternoon after school Jaydn would be sent for a run around the block near the family home in Logan south of Brisbane, a circuit of some five kilometres.
His father Daniel would follow behind in the family car to not only keep pace but also ensure there were no shortcuts taken.
"He caught me once," Su'A tells NRL.com.
"I'll be honest, I took a short cut once and he was parked up on the side waiting for me and as soon as I saw that I knew, knew that I'd have to go again.
"Dad used to send me for jogs around the block a fair bit.
"He'd tell me to go for a run around the block and he'd do one of those sneaky ones and drive and try and catch me out if I was walking or if I was cheating or anything.
"He used to time me and if I didn't make it he wouldn't be too happy but lucky Mum was there."
This afternoon ritual goes someway to explaining how a young man of just 18 years of age has been able to not only slot into the Broncos' NRL team but play all 80 minutes in two of the three games he has played to date.
It is extremely rare in the modern game for someone so young to come into the NRL as a running forward and even rarer still to have the capacity to lasted an entire game.
Although Jason Taumalolo made his NRL debut as a 17-year-old in 2010 he was almost 20 before he earned a place in the run-on side while Tepai Moeroa's elevation as an 18-year-old at the Eels also came via the interchange bench.
With the confidence that comes from mixing with NRL players on a daily basis Su'A is seen as one of the trump cards of a Queensland under-20s team looking to defeat New South Wales for the first time in five attempts.
Considered by highly regarded QRL officials as the difference between the two teams in the corresponding under-18s fixture in Melbourne last year, Su'A says that training alongside the likes of Corey Parker, Sam Thaiday and Josh McGuire every day at the Broncos has seen his confidence levels soar.
"At the start of the year I got a call from the Broncos asking me to come in one day a week and to see what it was like and obviously try and take my game to that next level. I guess I progressed and got a shot and took it from there," said Su'A.
"Obviously the intensity is crazy. Everyone trains hard and wants to be the best so at training you're challenging everyone for a spot.
"You learn a lot as well training with Sammy, Corey, Josh, [Anthony] Milford as well, it's crazy how much you learn and it's been a real great experience for me.
"The main thing is that you've got to be confident and training with the likes of Corey Parker and stuff each day gives you that confidence.
"I don't think there was ever a point where I thought, 'Yeah I'm ready' but I definitely knew that if it came along I'd do the best I could.
"The boys make you believe and I think that's the main thing, you've just got to believe in yourself."
Su'A will partner up with the only other member of the Queensland under-20s team with NRL experience, Melbourne half Brodie Croft, on the right edge in the main curtain-raiser to Origin III on Wednesday night.
Although he has happy memories from scoring a try in last year's 22-18 win in the under-18s, Su'A said he hasn't forgotten a hiding that was dished out by the Blues when he played in the under-16s and desperately wants to help break NSW's stranglehold in the under-20s.
"We got pumped in 16s so we came into the 18s game with the drive and desire to win," Su'A recalled.
"We came in as the underdogs and luckily we got the job done. They almost scored a try in the last couple of minutes to win the game but it was a double-movement and we were lucky enough to get the win."
