| A cousin of mine told me a joke similar to this while I was in college studying computer science. During this time I was quite the "extreme" rollerblader. I would jump off large concrete structures, ride stairs, and generally do dangerous things all without a helmet.
The joke my cousin told me was:
Q:What do you call a Scientist that hit his head on a curb?
A: Janitor
Needless to say, I was the proud owner of a brand spankin' new helmet the next day.
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