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An elderly lady phoned British Telecom to report that her telephone failed to
ring when her friends called - and that on the few occasions when it
did ring, her pet dog always barked right before the phone rang.
The telephone repairman proceeded to the scene, curious to see this
psychic dog or senile elderly lady. He climbed a nearby telephone
pole, hooked in his test set, and dialed the subscriber's house.
The phone didn't ring right away, but then the dog barked loudly and
the telephone began to ring. Climbing down from the pole, the
telephone repairman found:
1. The dog was tied to the telephone system's ground post via an iron
chain and collar.
2. The dog was receiving 90 volts of signaling current when the phone
number was called.
3. After several such jolts, the dog would start barking and then
urinate on the ground.
4. The wet ground would complete the circuit, thus causing the phone to
ring.
Which goes to show that some problems can be fixed by just pi**ing on
them.
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