Nica Door Bell
Somewhere Fyl posted something about his security camera being swiped from outside the house. This house in Esteli had the doorbell swiped, or maybe it just fell off a long time ago. The procedure to ring it is to take the popsicle stick, push it into the hole to close the circuit, and put the stick back onto the little ledge.
If it ain't broke, don't fix it!
Note that the device is mounted pretty high, above the reach of mischeivous little hands who will ring it and run.