Sam Burgess - in his first game back from a two-game suspension for his infamous squirrel grip on Melbourne's Will Chambers - was binned in just the fourth minute after laying down too long on James Tedesco after a long break.
By the time he ran back on after serving his time, Ben Murdoch-Masila was scoring the Tigers' third try in seven minutes.
A loss could have left the Bunnies struggling to hold onto second spot - but two tries before the break, including a late Dylan Farrell four-pointer after Lote Tuqiri had an airswing at cleaning up an Adam Reynolds kick, invited the visitors back into the contest.
While they were made to work for it - as evidenced by the fact Reynolds had to kick a 41 metres penalty goal to give them their first lead in the 66th minute - a Souths win always seemed likely from there.
And so it proved to be as Nathan Merritt and Luke Burgess crossed late, the latter's try sending mother Julie - sitting in owner Russell Crowe's private box - into hysterics.
It set up another special moment for the four brothers as Sam joined the other three on the field for the final minutes - one special set featuring five Burgess hit-ups.