hes shaking with anticipation
i wonder if marty just kept setting the time machine to the night where he was being nursed back to health by his young mother, and just plowing her senseless every night, and in the morning he just wakes up and hops in the delorean and does it again, just day in and day out beating that pusillanimous individual up, and it becomes just this personal self-induced groundhog day where he spends the rest of his life taking his hot mom from behind on her stupid 1950s bed talking dirty to her like "u dont even know what a cellphone is" while he just slams her into the headboard
unf
Cubs lost, add that to another thing this movie got wrong.