It's an anecdote that starts with a nervous gulp as a young Peter Krawietz delivered an analysis session to the FSV Mainz 05 senior squad.
A student at the University of Mainz at this stage, Krawietz – who hadn't and never would play football professionally – highlighted a scenario in the right-back area as a place where things could be improved upon.
Suffice to say, such an examination didn't at all go down well with Mainz's starting right-sided full-back.
Indeed, Jürgen Klopp proceeded to give the Mainz native both barrels.
"I was the presenter and had to say, 'Look here, the right full-back could be a bit more active and show up and shout'," Krawietz recalls to Liverpoolfc.