Goshawk fact: if you make a sound like an injured rabbit, a goshawk will involuntarily gripe its feet, hard, exerting vast amounts of killing power with all eight toes through the glove. And bruise your hand.
I already knew this.
I have found that exactly the same response is triggered by the following sounds:
1. The beeping of a cashpoint machine extruding twenty pound notes.
and, more sinisterly,
2. A baby crying.