Debuts don't get much more efficient than the one Ben White enjoyed against England on Saturday, scoring within minutes of his introduction to lift Scotland to a memorable Six Nations victory.
The London Irish scrum-half has enjoyed plenty of highs in rugby before making his Test debut in the Calcutta Cup, but he was quick to call his cameo "the best 10 minutes of my [his] life" so far.
That was roughly how long his Scotland debut initially lasted before he was called back off the Murrayfield turf, with starting scrum-half Ali Price having passed his early head injury assessment (HIA) in the capital.