Story that I believe is true.
My friend, Larry, took scouts camping. One of the folks said they were sleeping, and heard a "zzzzzip". The tent was unzipped, and a raccoon walks in. She jumps up and yells. The raccoon quickly scurries out, then stops and "zzzzzip" zips the tent flap back up.
Next day everyone claims that the person is insane. She dreamed it.
They go out, and come back. Another tent, completely zipped up, has been raided, everything turned topsy turvy and food eaten in a way only raccoons can.
Clearly, the raccooons have somehow learned to be clever. They unzip, eat, and rezip so as to camouflage their tactics.
You be the judge is this incredible and true.