Toulouse hit an unexpected speed bump as Glasgow put in a breathtaking first-half performance to win 33-26 at Stade Ernest Wallon on Saturday - handing Bath a huge Heineken Cup qualification boost in the process.
The Scottish side, who have no hopes of Pool progression after losing all four previous fixtures, shot out of the blocks as tries from Graeme Morrison and Kelly Brown added to Dan Parks' thirteen points and a 23-3 half-time lead.
Stern words at half-time from Guy NovÃ¨s stirred Toulouse somewhat but it was Max Evans who put the game beyond last year's runners-up despite a late charge that brought a penalty try and one from Vincent Clerc.
Parks confidently slotted a 45-metre penalty to edge the Scots in front, and even better was to come two minutes later as the Warriors carved out a try which stunned the partisan home crowd.
Vincent Clerc failed to deal with a grubber kick and Graeme Morrison nipped in to steal the ball and drop over the line, the score being awarded after consultation with the video referee.
Parks kicked the tricky conversion and then doubled his penalty tally.
Obstruction by John Barclay on Cedric Heymans gave Jean-Baptiste Elissalde the chance to repair some of the damage, and he duly clawed back three points.
Parks missed his next penalty attempt but frustration quickly turned to glee as Glasgow created a marvellous second try which even had the locals showing their approval.
A chip and chase launched the move before Barclay delivered the scoring pass to back-row colleague Kelly Brown, Parks adding the conversion.
Parks also clipped over an opportunist drop-goal just before the interval, stretching Glasgow's lead to 20 points.
Elissalde replied with two penalties to close the gap but Parks responded with another penalty after Fabien Pelous threw a punch.
Glasgow then pounced for their third try when the Toulouse backs failed to collect another grubber kick and Max Evans chased hard to claim the crucial first touch.
Parks converted before the desperate hosts threw everything into attack and bullied the Glasgow pack into giving away a penalty try, goaled by Yannick Jauzion.
And when Vincent Clerc nipped over for Gaffie du Toit to convert in the 76th minute, the outcome was back in the balance.
However, the home side had to be content with a consolation bonus point via du Toit's last-gasp penalty.
Tries: Penalty, Clerc
Con: Jauzion, du Toit
Pen: Elissalde 3, du Toit
Tries: Morrison, Brown, M Evans
Con: Parks 3
Pen: Parks 3
Yellow card: Elissalde (Toulouse) and Barclay (Glasgow) - punches thrown on 64 minutes, Andrew Henderson (Glasgow) - side entry on 78 minutes
Toulouse: 15 ClÃ©ment Poitrenaud, 14 Vincent Clerc, 13 Maleli Kunavore, 12 Yannick Jauzion, 11 CÃ©dric Heymans, 10 FrÃ©dÃ©ric Michalak, 9 Jean-Baptiste Elissalde, 8 Shaun Sowerby, 7 Yannick Nyanga, 6 Jean Bouilhou, 5 Patricio Albacete, 4 Romain Millo-Chluski, 3 Salvatore Perugini, 2 Virgile Lacombe, 1 Jean-Baptiste Poux.
Replacements: 16 Alberto Vernet Basualdo, 17 Daan Human, 18 Fabien Pelous, 19 GrÃ©gory Lamboley, 20 Byron Kelleher, 21 Florian Fritz, 22 Gaffie du Toit.
Glasgow: 15 Bernardo Stortoni, 14 Jose Maria NÃºÃ±ez Piossek, 13 Max Evans, 12 Graeme Morrison, 11 Thom Evans, 10 Dan Parks, 9 Colin Gregor, 8 Kelly Brown, 7 John Barclay, 6 James Eddie, 5 Alastair Kellock (c), 4 Dan Turner, 3 Moray Low, 2 Dougie Hall, 1 Justin Va'a.
Replacements: 16 Fergus Thomson, 17 Ed Kalman, 18 Richie Vernon, 19 Johnnie Beattie, 20 Ruaridh Jackson, 21 Andrew Henderson, 22 Hefin O'Hare.
Referee: Wayne Barnes (England)
Touch judges: Tim Wigglesworth (England), Paul Dix (England)
Television match official: Graham Hughes (England)