Group projects are the absolute worst. At least one person doesn't do anything, and the rest of the group has to pick up the slack. Sometimes people intentionally realize this dynamic and try to take advantage of it, but other times the grading system can work to ensure that someone who doesn't pick up their slack suffers a lousy grade.
This happened nearly twenty years ago during my first year of college. I was assigned a group presentation and placed with three random people in my class. The first meeting went well. When we all got up to leave, one of my male group members (who I will call Tool) squeezed my arm hard.
I looked at him like he had crusty boogers all over his face, yanked my arm away, and asked, 'Do you need something?' He scowled at me. 'I am running for class president and won't have time to do the presentation. You're going to do my part.' I laughed. 'I most certainly am not.'
Tool put his face close to mine and whispered somewhat menacingly. 'You're a woman and will do as I say.' I laughed again and said, 'I don't even know you, dude. You don't get to tell me what to do.'
Tool whispered even more menacingly, 'You Are GOING to do my part of the presentation, and that's that.' He then walked away quickly. I had no idea what to do. Do I tell the professor? Do I tell the campus police about him squeezing the sh*t out of my arm? Do I tell the other group members?
I wasn't going to do this guy's presentation. However, I wanted to get back at him because he put his hands on me, and I was petty. Then, it came to me. Time for malicious compliance!
On the day of our presentation and just before it was our turn to present, I handed Tool his project: A single piece of paper with only the words 'Tool's Presentation' typed.
I grinned and asked, 'Isn't it great?' Tool looked like he wanted to vomit. I leaned in and whispered, 'You Are GOING to get a terrible grade, and that's that.'
He stuttered some nonsense during his portion of the presentation, and while I do not know for sure what grade he received, it couldn't have been good. I got an A+. He never came to class again, and I never saw him on campus again. I don't know if he dropped out or what happened, but he wasn't elected president.
The internet also hates group projects.
That guy sounds like he would have gotten along with Brock Turner, the notorious rapist who now goes by the name of Allen Turner.
Dude's seriously a psycho. You did well. The only thing I'd have done differently is screamed at the top of my lungs, 'GET YOUR HAND OFF ME, &$##@&@!!' and made him BTFO right then and there. But then, that's not as fun a story.
I went to night school for college. Honestly, most of the students just wanted to skate by. In my statistics class, we were supposed to form groups for a semester-long project. Because I had no desire to get a grade based on half-a**ed work, and since I figured I'd do most of the work anyway, I told the professor that 'I don't play well with others.' and that I would do the project on my own.
He said that if I wanted to hang myself, go ahead. I surveyed all 50 states and how they broke down types of school violence, how many cases they had over the past ten years, and other categories I don't remember now (this was 2006). 20-minute presentation with Powerpoint and spreadsheets. I was the only one that was given an A in that class.
OP, that dude was not built for the world. Good on you!