Knee Jerk Reactions

As a kid, I was fascinated when doctors would carefully tap a patient's knee with a small hammer and the patient's leg would involuntary kick upwards.  That's where the phrase "knee jerk reaction" comes from. For years after first seeing this on TV, I tried in vain to make my knee do the same with plenty of bruises to show for my efforts. Life is full of knee jerk reactions. People get used to reacting in a certain way especially when they are being offered to buy something. You see,…

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