Headlight Washers (blue hose collar lock = in or out)?

I collected a Yeti a few weeks back. Yesterday got in the car and just before I pulled off, gave the windows a "skoosh" right in front of a chap as he was crossing the street.

Next thing he comes over arms flying... "there's fluid coming out the bottom of your car!"

Peek under the bonnet to find the headlight washer hose had blew off. Knowing the bumper had been off before I bought it, I'm sure the last garage hadn't connected these properly.

Question is should the blue collar on the hose connected be in or out to secure ...the other side is pushed in - considering that this one blew off I'm not sure if that's right or wrong - can anyone advise?