Llanelli Scarlets saw off Harlequins with a four-try display in the Anglo-Welsh cup against the Guinness Premiership strugglers.
This EDF Energy Cup clash at Stradey Park was the Scarlets' fifth win in a row and they took advantage of a weakened Quins side lacking stars like Hal Luscombe, Stuart Abbott, Andrew Mehrtens and Andre Vos.
Ex-All Black Regan King was outstanding for the Scarlets after coming off the bench almost from the first whistle.
A flying tackle from Quins' Tongan No 8 Chris Hala'ufia smashed into the jaw of Scarlets' rising star centre Gavin Evans, a good bet to take Wales' inside centre berth against Australia.
The 22-year-old had to be helped off, appearing not to know what day of the week it was, but he was ably replaced by on-form King, who showed his class with several casual line breaks and laid on a try.
Scarlets quickly took revenge as they battered the Quins' line, scrum-half Clive Stuart-Smith took a quick tap from a penalty and spun the ball wide before wing Darren Daniel darted over in the corner to claim his 6th try of the season after 13 minutes.
Wales fly-half Stephen Jones went wide with the conversion, but the home side poured forward again as burly lock Inoke Afeaki crashed over for a try converted by Jones.
Things didn't improve for a poor Quins side when they lost outside centre Mel Deane with a yellow card for killing a Scarlets attack just before the break.
But the guests hit back quickly when fly-half Adrian Jarvis fired a short pass to wing Ugo Monye who crashed through the home defence defence at pace for a deserved try.
Jarvis landed the conversion so Quins were back in the game and were only 12-7 down at half-time.
There was a great deal more urgency to Harlequins after the break, but they fell further behind when Llanelli's King casually beat flanker Will Skinner on the outside before gifting a try to full-back Barry Davies.
Jones landed the conversion to extend the Scarlets' lead to 19-7 as the home side cruised.
The Scarlets picked up the bonus point for their fourth try ten minutes from time when the pack marched Quins back over their own line and replacement No 8 Nathan Thomas touched down.
Scarlets: Daniel, Afeaki, B Davies, N Thomas tries, Jones (3) cons.
Quins: Monye try, Jarvis con
Yellow cards: Deane 36 minutes
Referee: Tim Hayes (Cardiff)