91205 - Yes HAI/BAI do hire people that they do not train. I know two people who work there presently - where hired when I was working there a few months ago.
I would be careful of going over and receiving primary training while on holiday. This could land you in hot water. To receive primary training you first need to get TSA approval, which is a long drawn out process.
I have been to a number of schools, and personally think that if you want quality training HAI/BAI is the way to go. This is not to say that a small mom and pop shop is not as good.
TGZ