Don't shit where you eat
This expression refers to doing anything that would jeopardize something important or essential to you. A common example of shitting where one eats is engaging in a romantic affair with a co-worker, but lying to your roommate or stealing from friends also fits this expression.
Local Bike Shop Mechanic #1: "Can you believe that guy? I've hooked him up dozens of times, but after the tantrum he just threw, I'll never take a dime off a part for him again."
LBS Mechanic #2: "Seriously. Hasn't he ever heard? Don't shit where you eat."
LBS Mechanic #2: "Seriously. Hasn't he ever heard? Don't shit where you eat."
Don't shit where you eat by Tom Cerveaux February 8, 2010
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