http://xoxohth.com/thread.php?thread_id=5280217&mc=25&forum_id=2

Scumbag kids wander into people’s yards and houses and stuff and just start talking to them.

(http://www.autoadmit.com/thread.php?thread_id=5734236&forum_id=2)#48992453)

MARTY

Doc Brown's all right — he's just a little hung up on time. A couple of years ago, he showed up at my house and hired me to sweep out this garage of his. He pays me 50 bucks a week, gives me free beer... and gives me total access to his record collection — he's got this great old record collection.

(a beat)

Hard to believe he was one of the world's greatest nuclear physicists.

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Of course, this line didn't make it into the movie, so pedants will say it isn't "canon," but you got a better theory? I'll admit, the screenplay seems to imply that the Doc was planning on sending Marty back to 1955 all along, and that angle, if it's in the movie at all, was severely downplayed.

Screenplay (see page 12): https://www.dailyscript.com/scripts/bttf4th.pdf

(http://www.autoadmit.com/thread.php?thread_id=5734236&forum_id=2)#48998379)

There was an instant connection and that evening Doc penetrated his asshole for the first time. Ever since then they've been living life to the fullest.

It got only got out of hand once and that was when Einstein got involved in a night of passion that none of them will ever forget.

Biff: Does dog semen taste the same as human?

Marty: lol, I guess so. I guess.

(http://www.autoadmit.com/thread.php?thread_id=5734236&forum_id=2)#48999018)