Refrigerator leans out on right hand turns - 2014 Georgetown XL 334.

Coach is a new leftover. Took our first trip with our teenage girls and as I'm driving there's these screams coming from the back of me. the kind that make your hair stand up if I had any. Anyway, it's my girls screaming because as I made a right turn, the fridge leans out from it's position and they were terrified it was going to come out! Indeed, you can wiggle it even when stationary. It wobbles way too easily.
1. does anyone else have/had that issue?
2. is there supposed to be mounts to prevent this?
3. I was thinking to devising something to block that motion, has anyone been there, done that yet?

Thanks.