I had a Sunday to kill one day in Chicago (business trip). Went to the Lincoln Park zoo. Go into the gorilla building and they have a huge lexan window, probably at least 2" thick, where the visitors could stand on the other side of the glass from the apes.
Six feet from the glass is a tree stump, with the silverback sitting on it, looking bored. There's about a hundred kids pressed against the glass looking at him. He glances over, see all the kids, then looks away, acting disinterested.
He then suddenly launches himself at the glass, and 4-500 pounds of ape makes a huge boom as he hits the glass. Dozens of women and children scream and fall back. He calmly walks back to his tree stump, sits down - and smiles. Big bastard knew exactly what he was doing
