At Richmond on Friday Manderley bounced back from a fractured hock to win first-up after more than five months on the sidelines but main concern now for his trainer is keeping the dog in his kennel.
"He is the best escape artist I have seen,'' trainer George Borg said.
"Manderley has worked out how to poke his head through to the bolt on his kennel door and to open it with his teeth.
"When he gets out he doesn't take off anywhere, he just potters around socialising with my other dogs and checking them out in their kennels.
"So I have to make sure I put the pin into the bolt a certain way to stop him escaping.''
Borg, the original trainer of Good Juan, is currently enjoying an outstanding run and that greyhound's litter sister Dawn Juan won over 520m at Wentworth Park on Saturday for him in a personal best 29.87sec.
Ritza Tommy, who scored his third Wentworth Park win in six appearances on Saturday night, is ranked by trainer Mark Gatt as among the fastest he has trained, but also "the dumbest.''
Ritza Tommy was sent out a long odds-on favourite against five rivals in a mediocre fifth grade on Saturday but managed to give those who snapped up the skinny $1.35 quote a few palpitations before he came from second on the home turn to win by nearly six lengths.
"He won in 29.97 last month and clocked 29.96 tonight but he still nearly managed to bring himself undone,'' Gatt said.
"Ritza Tommy is a very fast dog and has broken 24 seconds in a post-to-post slip at Wenty, which is airborne.
"But when he is in a field he does a lot of dumb things.
"I think maybe he will perform better when he gets up in grade and is up against more experienced dogs because top grade events tend to be run more cleanly.''
Gatt's father Frank, who owns Ritza Tommy, said: "I don't think the penny has dropped with the dog yet but he is only 22 months old so hopefully he will work it all out shortly.''
Tucabia and Arctic Kingdom posted slashing trials for the next month's Wauchope Cup with near record wins over 457m and 384m there on Saturday morning.
The Craig Gardoll-trained Tucabia led throughout in 25.42 while Arctic Kingdom, after a brief early tussle, quickly took over to win easily in 21.52.
"Tucabia will tackle this week's Armidale Cup heats at Gunnedah and then he will be aiming for the Wauchope race,'' Gardoll said.
Arctic Kingdom's trainer Mark Moroney said: "This dog has been lightly raced due to wrist problems but he trialled fast before Saturday's race so I knew he was ready.
"Arctic Kingdom loves the Wauchope track so the Cup heats on January 2 look perfect for him.''
