I just had an encounter today. My escape artist was within a foot of a full grown opposum befor 8 am this morning in my front yard. She just stood there and I reached down and picked her up. It was not aggressive just looking for an easy meal. Seemed confused like it had been disturbed from sleep and thought "why not". I called animal control and asked about them being out during the day and they told me it's normal, especially in colder weather when food is more scarce and that opossums can't get rabies. I still don't want them around my house, my cat has had an encounter and nearly lost his tail in the past.