Hi people. If I view my porn (just be honest) on an external USB drive or some other external drive that goes through my USB port, is there any record of it after I'm done on my computer? I just want a clean computer these days because I'm not 18 anymore when it didn't matter. I don't want porn on it and assume it will not show up if I view it and then remove the USB drive? In contrast to when you view websites and it stores that stuff. I have a MacBook Pro. Thanks.