Australian runner Jeff Riseley joked he should hunt for a new job after a premature Olympic exit in men's 800m.
Riseley's London Games ended on Monday after clocking a disappointing one minute 46.99 seconds in the opening heats and well off the pace for a semi-finals start.
It's a shock result for the 25-year-old, who had been firmly eyeing finals contention coming in as the 12th fastest man.
That follows the personal best he set less than a month ago - a 1:44.48, which came within a whisker of beating Ralph Doubell's long-standing Australian record.
"It's my second shot at it and I've had enough world championships to get it right," a disappointed Riseley said post-race.
"What am I doing in this sport?
Asked what he'll do now, he joked: "Look for a job."
An injured Riseley also crashed out in the heats at the 2008 Beijing Games, but this time round, the Melburnian had no excuses.
He said he'll keep trying to chase Doubell's record.
"I felt in the right position with 100m to go ... but I don't know if I tensed up or just the pressure.
"My legs got heavy and I just couldn't get to the line.
"I just can't produce (at big meets) for some reason."
Riseley hinted the mental pressure was most to blame.
"Physically there's nothing wrong," he said.
Riseley won his ticket to London having qualified in both the 800m and the 1500m, but due to a scheduling conflict, was always going to have to choose between the two.
He rated the 800m his best chance - teammate Ryan Gregson made it to the semis of the men's 1500m - and it was an option he still wasn't regretting on Monday.