Great story, Terry.
Some of my HS teachers remember me, too!
Like that day in physics class we were studying about series and parallel electrical circuits- 1967, it was a sunny spring day
I asked the teacher if I could do an experiment to find out if the school's bell system was a parallel circuit-- he said OK
I pushed a chair near the bell chime and waited - the volt meter read around 24 volts when it rang to let the class out-
I told the class I would conduct my experiment the next day.
So, I did- about 10 minutes before the class was supposed to let out, I hooked up the power supply, set the rheostat for 24 volts and connected the alligator clips to the bell terminals
The bells rang all through the school and all the classes let out early- the bells do not lie- haha
I walked past the principal's office and saw him with the door open to the bell chime system, yelling to his secretary, "I don't understand how this could have happened!"
We had a good laughed about our bonus break!
Would you believe that not one person in the class even asked me if it was a series or parallel circuit!
Our teacher, My Colwell was a cool guy -late 20's but not so cool, as to let me try that stunt again--