Just did a search for “honda ad” on YouTube (looking for that ad where the parts of the car all tumble in sequence to turn on another car) and got a nice big Apache error…

Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator, web@youtube.com and inform them of the time the error occurred, and anything you might have done that may have caused the error.

More information about this error may be available in the server error log.
Apache Server at www.youtube.com Port 80

I didn’t realise Apache powered YouTube - nice one!