Even after over 30 years, some of the memories of traveling in Western Railway of Bombay suburban are very vivid. Some of these experiences have made me conscious of a number of critical programming concepts.
For example, exception handling is a must. If you can't handle a problem, pass it to someone else who can.
I was returning home and crowd was the usual size. We try to rush in and, hopefully, into the compartment so that we are not hanging from the door.
I try to get in from the left side of a pole in the center of the door. I suddenly find that a fellow passenger is trying to get in from the right side of the pole. Nothing wrong with it except that his arm is going around my neck. Neither can get on board and the harder he tries, the worse my condition.
To this day I cannot figure out how such a configuration occurred; but many problems in a multi-threaded application do not make any sense either. For a few seconds, I was sure that this was the absurd end to my life. However, other passengers realizing the deadlock, made the other passenger release his grip and I could board the train and then so could he.
I did not get an apology. Did not expect it either. I was just grateful for the release.
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