[YorkieMother]

I wold get a skate board and leave it in sight but not in the way so it can be checked out in the comfort of home.

Then I stick it right up next to bed or food and leave it there until it a non thing.

Then I roll it around the house and just a little until it used to it.

Then outside. Then with a human outside at home.
Then outside with a human known in an new area,.
Then start far from other skate boarders and only going as close as the dog shows not concern and slowly build up to hving strage people in strange areas rolling on by.
Your asking a dog genetically ingrained to hunt not to hunt that takes time on top of any fear it may have.
Lots of food treat for when the dog is calm.
I also use look at look away . So look at teh scary thing then look at Mom for a treat.

JL