is a nice little kitchen timer unless you want
to set a time less than 15 minutes. To do so
you must first turn the indicator to a time
15 minutes and then turn it back
to the time you actually want!
There is no indication of this
on the front of the timer. What ends up happening
is that you set times less than 15 minutes without
first turning the indicator past 15 minutes. Then
the timer doesn't go off.
design violates your expectations by having one
rule for setting times greater than 15 minutes
(turn the indicator to the desired time) and
a different rule for setting times less than 15
minutes (turn the indicator to a time greater
than 15 minutes and then to the desired time).
A device like this should follow a consistent rule.
There is nothing in the appearance of the timer
that would lead you to believe that it works like