You stole our Obama sign = we bought another sign = Obama campaign gets more money

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We'll soon find out if this is a good way to prevent signs from being stolen:

Someone stole our Obama for President sign from our yard last night. They stole nearly all the Obama signs in our neighborhood. The ones they didn't take they spray-painted black. So I made this sign today and staked it in the yard. I fully expect it to be trashed by morning. At least they know the result of their pranks: we give more money to Obama's campaign.