Not as exciting as it may sound:-)
When in 7th grade, our class won a National contest- a boat trip to England!
We visited a police station there, and the officer told us about the work they do, and we were allowed to look at and touch some of the equipment they use.
He said that we should not lock the handcuffs, since it was sometimes difficult to open them, but by the time he said thad I was already in iron.