Sorry but don't like the sound of that, it sounds very much like "collar jerking " to me..( aversion training) interrupting a behaviour with a negative reaction.....I.E ... Rattle bottle, jerk on the lead, e.collar...and so on, the dog gets a nasty action to his behaviour , it's supposed to make the dog associate his behaviour with a bad reaction, in truth all it does is back up the dogs unwanted behaviour with the aversion ....I. E ... The dog barks at another, you jerk the collar, spray it in the face, rattle a bottle, and the message the dog really gets is, I told you " that thing" was bad, because its just re-forced my fear.. By the bl**dly shock I just got.

Why does she want to muzzle him. Is she bringing stooge dogs with her.. Surely she is not going to let your boy get close enough to attack them, that's all he needs is to be flooded with dogs to re enforce his behaviour .

I think you need to clarify her methods before you let her near your boy.

Well said Jackbox!

Personally I would phone and cancel and not let that 'trainer' near your dog with a barge pole! If they think hard checking ip might be needed then they are idiots.

Stick to an APBC or APDT trainer and only ever use methods that are kind fair and effective!

I think that's the best thing to do. To be honest I wouldn't be happy with any trainer who is suggesting putting a muzzle on you dog before they've even met it. Asking that you have it secured on a lead or out of the room when they arrive...yes...but muzzling.....no.

it's because I said I muzzle him when out or around new people because he can be nervous aggressive too...

I'd say its because they don't know I what their doing! The behaviourist I used to work for would say that muzzles often make the situation worse so he would rather the dog wasn't muzzled but securely on a lead and out of the room when he arrived at your home. Then he would do a full behaioural assessment, asking you questions first and then meeting the dog. If they know what they are doing they would not put the dog in a position that it could not cope with so would not endanger themselves either,

It's a mine field though isn't it. So hard to choose the right person if you don't know much about what your looking for. I found our training classes by accident and then became and assistant and then an APDT registered trainer but let my membership lax when I went to uni and couldn't find any courses local to where i was to keep up my professional development. Shame really.