It doesn't hurt to take a hard look at yourself from time to time, and this should help get you started.
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During a visit to the mental asylum, a visitor asked the Director what the criterion was which defined whether or not a patient should be institutionalized.
"Well," said the Director, "we fill up a bathtub, then we offer a teaspoon, a teacup and a bucket to the patient and ask him or her to empty the bathtub."
"Oh, I understand," said the visitor. "A normal person would use the bucket because it's bigger than the spoon or the teacup."
" No." said the Director, "A normal person would pull the plug. Do you want a bed near the window? "