Among football's plethora of cliches, there remain few more ridiculous than the one proclaiming a two-goal lead is the most dangerous a team can have.
After all, never has a side gone two ahead then responded with relief by immediately thumping one into their own net to ensure the advantage was swiftly halved.
Flippancy aside, the peril in the phrase refers not to the scoreline itself but rather the psychological quandary with which the leading team must then grapple.
Do you stick with what you have and run the risk of handing the initiative to the opponents? Or is it better to continue on the offensive and gamble the other team doesn't capitalise on your seeming over-confidence?
This is the situation Liverpool find themselves in this evening when they step out at the Puskas Arena in Budapest for the second leg of their Champions League round of 16 tie against RB Leipzig.
Leading 2-0 from the first game, Jurgen Klopp's side are strong favourites to progress to the quarter-finals for the third time in four years.
And with good reason.
Only once in the history of the European Cup has a team won a first leg away from home by two goals or more and then been eliminated. That was in 2019 when, after winning 2-0 at Manchester United, Paris Saint-Germain lost 3-1 on their own patch to go out on away goals.
Indeed, Liverpool have progressed on the nine previous occasions they won the first leg away from home by two goals.
However, recent evidence suggests the Reds could be in for a nervy evening.
Their first such triumph came in the 1967/68 season when, after a 2-0 win over Malmo in the Fairs Cup, the Swedish side were beaten 2-1 at Anfield.
Liverpool romped to a 6-0 home triumph over Real Sociedad in the 1975/76 UEFA Cup having won 3-1 in Spain.
And matters were similarly one-sided in the 1976/77 European Cup semi-final when FC Zurich were beaten 3-1 away then 3-0 at home, and in the 1991/92 UEFA Cup when, after a 2-0 win at Tirol, Liverpool eased through with a 4-0 Anfield success.
The new millennium has thrown up more testing encounters, though.
In the triumphant 2000/01 UEFA Cup run, Michael Owen's brace earned a 2-0 win at Roma but Liverpool went down 1-0 at home and were fortunate to escape conceding a second when Markus Babbel was initially adjudged to have handled inside the area only for the referee to bizarrely change his mind and award a corner.
Matters were similarly fraught at the start of the famous 2004/05 Champions League campaign when Grazer won 1-0 at Anfield having lost the first leg in Austria 2-0.
The following season in the qualifiers for the same competition, Liverpool saw off Kaunas 3-1 away and 2-0 at home, but had more difficulty against CSKA Sofia in the next round, again winning 3-1 on the road but left hanging on in a 1-0 reverse at Anfield.
The most recent instance came in Roy Hodgson's first games in charge in the 2010/11 Europa League, when Rabotnicki were beaten 2-0 in both legs.
Of course, with Liverpool not playing at Anfield this evening - coronavirus restrictions in Germany mean the game, as with the first leg, is in Hungary - there aren't quite the usual circumstances.
But regardless of venue, Klopp and his players have an intriguing call to make regarding their approach to another tough Champions League encounter.
