And another thing. What is there to actually go wrong? I mean if the engine starts to overcome the front brakes and you start inching forward then big deal just let off the gas.
Like I said, not the easiest method. And besides I'm not talking about doing this as a daily thing. I just meant if you wanted to do it once for a picture or somthing or if you had to remove the rear brake line for some reason then why not have little fun with it.