how to know if you have a possum under house?

They are nocturnal, but could be out in daylight. It is not exactly rare, but not common either. If you need to know how to get rid of the little guys, then visit How to Get Rid of Possum

I was thinking that it was the ugly dwarf palm trees in front.

yes

You must have a place where that will be converted into drug addiction treatment centers .

I would go with red or green or a natural wood finish. A veneer would do well.

An editor's ghost roamed the halls. He constantly wailed in agony, recounting the moment of his death. The pain, the sheer horrid pain! They tortured him for three whole weeks critiquing the manuscripts of liberal arts college students, and tragically, bored himself to death.