The really good web host's admit when they had a problem, the rest just say they have done nothing and it has to be something you did even if you had not even changed a web page in a year, lol.

I had a host that did that to me once. Then he followed it up with, "Well if you think you can do better then go a head."

Well that was in 1999 and since then I have been doing better, he is out of business. Now when something goes wrong I fix it with no problem, I own the data center.