When I was a teenager a friend and I were going to a football game on a Saturday afternoon. He was supposed to pick me up. When he didn't show I tried calling but got a busy signal. A few minutes later he called and said he couldn't go because, "my house blew up". My reaction was, yeah right.
I drove over and it looked like the house had blown straight up, moved over a couple of feet, and came down. There was laundry sticking out trapped by the house on the foundation. All the windows were blown out.
He told me later that they smelled gas and called the gas company. One of the two men from the gas company, an obvious genius, went downstairs with a lit cigar in his mouth.
He also said he was in the living room when the house blew, but was "lucky" because, although he was blown out the front window, the glass blew out before he went out. He and his parents had minor injuries. The gas company employee was badly burned.