Hi. Can anyone help?

I've got two dogs, a border collie (5) and a Jack Russell (3). The
collie's always been good with other dogs and the JR started off good
with other dogs - went to puppy socialising classes etc - is OK with
the collie and has even been known to tolerate friends' dogs in the
house. (I can't be sure who is the higher status dog of the two; they
seem to interchange in different circumstances.) However I always had
trouble if the JR was off the lead stopping him from going up to greet
other dogs - but it was OK at first because they'd just play.

Then he started:

Getting aggressive with dogs on leads - he'd go up with tail wagging,
sniff, then suddenly and unexpectedly start having a go at them.

Then getting aggressive if HE was on a lead and another dog came up to
him.

Then getting aggressive with dogs he met around the place we walk most
regularly, around our horses' stables. For a while it was fine, he'd go
up, they'd sniff and then play. Then he'd suddenly turn aggressive and
once bit one badly. Now if I let him off the lead (which I can't if
there's any chance there'll be another dog around) he will rush
straight up barking to see them off.

For a while despite this he was fine if he was on unknown territory but
now he is doing the same behaviour elsewhere as well. I have to keep
him on the lead all the time which feels so unfair as of course the
collie has to get off the lead and run. If the JR gets in a scrap, the
collie would join in to stick up for him, then all hell breaks loose
(the collie is fine otherwise).

In the house he seems a sweet, cuddly, soppy dog; and his basic
obedience is good UNLESS he gets into this "red zone" of focussing on
another dog, then he's unmanageable.

Can I solve this on my own/with classes or do I need professional help?
I can't really understand how this started, I wasn't aware of him
having a bad experience with a dog or anything, and I can't decide if
it's fear or dominance aggression or territorial or all three!!

Everyone who cares about Howe's insecurity raise their hand...

wrote:
HOWEDY mikey aka pat aka unsurreality aka trollbasher
you anonymHOWES pathetic miserable stinkin lyin animal
child an spHOWES abusin punk thug coward active acute
chronic long term incurable mental case and professional
dog trainin FRAUD an SCAM ARTIST,

Umm..I was "Pat" a while back. Who the **** is "trollbasher" ? You
already accused me of being BlackVomit and you were wrong there.

You LIKE being wrong.

How many god damn names do YOU have? I have one.

You STILL haven't told everyone your REAL name. You anonymous piece of
**** child molester.

WHO am I SCAMMING?!? *I* don't even advertise my book EVER like you do
with your crap manual! HOW am I FRAUDULENT?!? I don't sell "magical
black boxes." In fact, I sell NOTHING. So explain yourself. While
you are at it, provide the proof that I'm a mental case and child
abuser. Can you even do THAT?

While you are at it, PROVE that I'm a spouse abuser too. Let's have
it!

You are one sicko...it's even worse that you don't even see it.

Have fun fondling more kids...creep.

wrote in message
ups.com...
Hi. Can anyone help?
Can I solve this on my own/with classes or do I need professional
help?

Hi Anna,
I think it would be best to start off with one to one sessions with a
trainer and/or behaviourist before going to classes. What part of the
country are you in?
Avoid Bark Busters , most have very little training and tend to use a
standard technique of throwing things such as water bombs on the ground to
startle the dog;(
You can get more advice about behaviour and trainers etc on this forum
http://www.takingthelead.co.uk/cgi-bin/yabb/YaBB.pl

Alison