I have a travel alarm clock which folds into a tiny box.
The best thing about it, is it sounded exactly like the school bell.

I took it in to school one day and set it 10 minutes before the end of each class. Every single teacher, apparently with no spatial perception, thought it was the real bell and let us out early.

The next day, all the teachers whose classes we were in had moved their clocks forward 10 minutes, thinking they were slow. Since we had classes on alternate days, this meant that the other half of the year had a lot less playtime, and we had a lot more, for two days. We also managed to get first in the tuck queue for both days.

And the next day, we got lynched.
(Sivvus trolley collision in the fruit aisle led to a jam, Thu 8 Sep 2011, 21:13, 4 replies)

Teachers with spatial needs

(roysin, Thu 8 Sep 2011, 21:40, closed)

Temporal perception?

(Shippy likes linebreaks and doesn't care what you think, Fri 9 Sep 2011, 2:14, closed)

It's all relative.

( chenobble rocking his explorer beard on, Fri 9 Sep 2011, 10:50, closed)

I'm guessing
the spatial bit is about where the noise was coming from.
( Ithyphallophobia, Sat 10 Sep 2011, 11:36, closed)