As unlikely as it might sound, I generated an address on Blockchain.info that had been previously used.

Has anyone ever generated an address on Blockchain.info only to find that it had previously been used? This happened to me recently, and I've now seen $20 flow through this address that I have never used. I've been trying to get an answer from them on ZenDesk but it's been a few days and I haven't been given any answers. via /r/Bitcoin http://bit.ly/1VtOlU9