I have noticed this behavior twice. When driving over uneven surfaces WITH the steering wheel turned I have heard a single "knock" from what seems to be the steering in the Accord. Today I was pulling out of the drive way to move the Accord into the grass out front (this would be the uneven surface I was mentioning) and I heard and felt a slight knock from the steering. Is this normal behavior? Or is something out of whack. Have any of you ever observed such a thing in your car?