Despite Ruby's inital threat... she didn't carry it out for a number of reasons.
Most of those reasons being Laz.
Had he not been there, she probably would have done exactly what she said and much more. But for the sake of his journey, she decided to step back, if only slightly.
While Ruby didn't shove her boot exactly where she said she was going to, that didn't stop her from quickly vanishing from sight, appearing behind Jennia, grabbing her hair and kicking her in the ass. The force of the blow was so immense, Jennia felt her entire lower body go out from under her as her body crashed to the floor on her back. Then, before she could even move, a boot was pressed down on her neck, causing her to be unable to move or barely even breath.
