I always had a 22 rifle and a 12 gau in the trunk year round at school.
I put the decoys in trunk (78 Impala )

I refinished a 22 rifle in the Ag shop when I had study hall and it was empty.
Me and a teacher sighted in the scope ,inside with the exaust fans runing to cover the sound .
We used a bullet trap that another student made.

Today we both would spend time in jail for that !!!!!!!!!!!