Why did Cecilia remove the leash on the dog?

Question

In the opening scene of The Invisible Man, Cecilia escapes from home and removes the leash on the dog. Why so?

Answer 1

In the opening sequence, Cecilia escapes the house. Once outside, she hears her dog groaning, behind her, motionless. She then goes to the dog.

Close-up on the leash that shows "invisible fence" (electrical device). Cecilia says

I can't take you with me

and removes the leash. The dog is free to go, as she won't be around to take care of it.