How to return a stubborn shelter dog back to kennel after the walk? ​

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​I am a fairly new volunteer dog walker at my local shelter and am currently approved for Level 1 dogs. I’ve run into a challenge: some of the larger, powerful dogs completely refuse to go back into their kennels after a walk. They will pancake, refuse to enter the run, or try to push past the door.

​Today, I was walking a large Husky who absolutely refused to go back inside. I asked a staff member for help, and they used some leash corrections to get the dog in. As volunteers, we aren't trained or permitted to use those kinds of corrections.

Any tips?