What is the strangest thing your pet ever did?

When I was 15ish I had this cat I named Wooden because I saw him run head first into a telephone pole and I said he was dumb as wood. One day I am outside and I hear the strangest sound. I walk around the house and find that the tree above my picnic table is filled with birds. Wooden is standing atop the table, on his hind legs, singing to the birds. It was the strangest and most alien beautiful song. Idk if he was trying to lure them closer for the kill or just show them his love for them. Maybe both.