Rehomed Boy won't stop trying to "hump" Molly....Advice needed for a friend please!!

[Teresa]

A friend of mine on facebook has rehomed an unwanted Cavalier...a beautiful tri boy... He looks to be between two and three and is castrated. Her existing Cavalier Molly is 15 months (Spayed). since they brought the newbie home he has been trying to hump molly (Sorry there is no other word I can use to describe it from what she says.) She had little info on the chap. She brought him home yesterday and he had to go to the groomers today as he was really matted and the humping has got worse since then.
A behaviourist has recommended a water spray and a sharp "leave it" and this seems to be helping a little. Molly is laying down or trying to hide but not told the little boy off...
My friend is really needing some advice on what to do about this....I said it may be stress related...lots of new experiences.. She thinks maybe a dominance thing... Apart from this he is utterly adorable...
Ideas and comments gratefully received!!!! Many thanks )

[StillPooh]

Ultimately it is gonna be up to Molly to put him in his place. Pack order issues are best left to the dogs to work out, unless it looks like there's gonna be bloodshed.

[Teresa]

Pretty much what I thought...molly needs to tell him where to go!! Apparently it was worse after the groomers....Hopefully when he settles in it will ease a bit too.....

[Desrae]

Ha, funny I just replied to the Dominance thread where a member is having a similar issue. I agree that Molly will have to sort him out, she'll eventually get the gumption to tell him off in a doggy polite way. The suggestion of the trainer will help as well. Good Luck and let us know how things are down the line.

[StillPooh]

Apparently it was worse after the groomers

Clancy always shags his stuffed pig a lot more right after the groomer, too.

I think there's something about having that brazillian (my groomer shaves the hair off his penis) that does it.

[Teresa]

Thanks Desrae I will pass on these comments ) I also said it's been a big couple of days for him....Poor little man

[Teresa]

thanks for your comments...I really hope it irons out!!

[Ruth]

I have had this a couple of times with rehomed boys and it sorted itself out after a few days.
Ruth

[Cathy T]

I wish it would sort itself out here!! Micah is now 18 months old...and still humps Shelby I've waited for her to tell him off, and she sometimes does. I know when it's going to happen....when he gets excited about anything...the doorbell rings, there's a dog on the tv, etc. He was neutered at 7 months. I don't scold him though. I tell him "no Micah" and redirect him. I figured Shelby would sort him out (she would never put up with this from another dog!!!) but so far it's been up to us. It was particularly lovely when we were being interviewed for our local news station when we were doing a dog event.....and I realized that Micah was going to town on Shelby....luckily it wasn't caught on film

[Jay]

It was particularly lovely when we were being interviewed for our local news station when we were doing a dog event.....and I realized that Micah was going to town on Shelby....luckily it wasn't caught on film

Oh dear, that would have made the pet bloopers reel at Petco Park.....

J.