I definitely agree with you here. Massive Comic Spoilers:I mean, I think you're right, I just don't see it being anywhere near as (comic)BAM! as in the comic.
I really want it to happen just like it did in the comics because I hate Jessie but having Rick do that to show Jessie will only make him look even more psychotic. He pursued this woman from day one, killed her husband after fighting him in the streets, then a day after maybe consummating a relationship, he chops off her hand and leaves her to die in a herd of walkers. That's pretty brutal (but I still want it to happen).