Oil filter replacement

I think most of us have done early in our wrenching days. I had a brand new 80 Honda Civic, went to change oil and filter and never realized the oring was still on the filter adapter. Put new filter on and had a leak there. Looked at old filter and noticed oring not on the filter. Pulled new one off and there was old oring. You just never think about it not coming off with the filter. 45 years later and I have made it a habit since, to check that the oring comes off with the filter.