Chaining a bike outside in bed stuy

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Ya think it'll get stolen? I live on lafayette, which is a pretty high-traffic area, but NO ONE chains their bikes outside...however, mine is heavy and I was considering chaining it to a street sign and winding the chain through the tires so they cant get stolen (plus maybe removing the seat...)

thoughts? I mean, how DO they steal bikes that are chained with those HUGE locks and chains anyway? Or do you think it might just get vandalized somehow?