A few months ago, i started drawing a comic that explained why grimmjow and ulquiorra hate each other. I think it was something with ulquiorra with important papers (deja vu...) and grimmjow asks if he needs help, but when he does help, he gets a paper cut^^ i'm pretty sure this is where that originated
anyway, if you can't tell what's going on, ulquiorra's coat tails are dragging on the ground and grimmjow steps on them, tripping ulqui
hmmm... maybe this is why they hate each other...
sorry for the sloppiness, i'm kinda tired of editing my pictures, so i just used the fill tool to color the background

~grimmy