Mine live in sheds and have access to their runs until I lock them in for bed, which is normally around 10.30-11pm, but if it's cold then I put them to bed earlier.
I know mine would like to stay out much later as they are all out in their runs at bedtime, and even though I know the runs are secure and on concrete I can't get my head around letting them out all night:roll:.
I don't think we get foxes in the garden, but just seeing one might frighten the life out of them! I know it would me:lol: