A second-string Bohemians, laden with kids, looked like men against the boys of St Patrick's in Inchicore.
A brace from Ali Reghba sandwiched a Robbie McCourt tap-in, an early Achille Campion strike rendered a distant memory by a dominant Gypsies.
Pat's fans will wonder where they are going after seeing a club with a smaller budget, effectively playing their second 11, dominate the hosts by the Camac.
Bohs now replace them in the top half of the table, Europe in reach for neither Ã¢â‚¬â€œ via the league at least.
Keith Long's outfit, their main target clearly the FAI Cup Ã¢â‚¬â€œ they face Cork City in the semi-final on Sunday week Ã¢â‚¬â€œ made 11 changes from the team that beat Derry at Brandywell.
Shane Supple, Keith Ward, Dinny Corcoran, Keith Buckley, JJ Lunney and Dan Kelly were among those all rested and the youthful Gypsies team Ã¢â‚¬â€œ six of the starting 11 under-19 Ã¢â‚¬â€œ went behind on four minutes.
The defending was shoddy as Campion was afforded all the time in the world to continue his fine form since joining Saints, the Frenchman heading home from a Jamie Lennon free-kick.
Rookie keeper Colin McCabe stopped it from getting worse by making a point-blank stop from Jake Keegan's header.
Bohs very much grew into the game as the first half developed and the nicely-crafted equaliser was not against the run of play on 27 minutes.
Eoghan Stokes' gorgeous pass unlocked the Pat's defence, Ryan Graydon crossed for Danny Grant; he redirected across goal and the impressive German-born Reghba couldn't miss on his full league debut.
Bohs, on top, grew in swagger and the impressive Robbie McCourt's nutmeg led to the space he sought but the former West Brom midfielder could only shoot over Brendan Clarke's crossbar.
The visitors should have gone in front nine minutes after the restart. A goalmouth scramble ensued after Stokes' shot from around eight yards was parried by Clarke, with Pat's struggling to get into any sort of rhythm.
The Gypsies deservedly went ahead 11 minutes after the restart, Reghba finding Grant whose shot was parried by Clarke into the feet of McCourt, who tapped in.
Bohs wrapped it up with eight minutes to go with another goal that showcased their production line, with a powerful run by young sub Promise Omochere teeing up Reghba for his second.