So if users clicking on ads without the intention of buying is click fraud - what about when a user accidentally opens one of those lame ads on a youtube video

So if users clicking on ads without the intention of buying is click fraud - what about when a user accidentally opens one of those lame ads on a youtube video when they were actually trying to close the ad? I certainly had no intention of giving the advertiser any money and yet it probably registers on their end as a click.