He would still have been attached to her and in the film's logic, that was the problem. You can bet that there would have been a point where he would have been afraid for her leading to yadda yadda.
Damn I'm surprised you say that. I'm a native french speaker I've always thought that portuguese is a godsend. So fewer bullshit, so much more rational...
Another possible interpretation I haven't seen in the comments: it's possibly about capitalism under which companies fund school where you learn that it's normal to be a wage slave or something like that?
Yeah, your teacher seemed to deal in absolutes: "it always happens" or "it will never happen again". I think that events can always happen (again) but they don't have to.
It's actually a very reasonable behavior if cars were normal predators: wait for the last moment before jumping out of the way so that the predator has to do a 180° and you've already left.
It's actually better than what OP said. We have a T cell for every antigen. Period. Even the ones that nobody has ever encountered. That's because T cell receptors are proteins, that is, combinations of amino acids. Random combinations of T cell receptors are produced by the immune system (if it does not harm the host).
The caveat is that it takes a while for the T cell of an unknown antigen to be activated, enough time for the sickness to appear and even become critical.
He would still have been attached to her and in the film's logic, that was the problem. You can bet that there would have been a point where he would have been afraid for her leading to yadda yadda.