Pretty much any blue streaker who decides to step all over you immediately after you request a ramp clearance from CLT. I've never seen such clockwork douchery in my life. Even the clt controllers have complained about it. I've been trying so hard never to say "br-wn streak" but I'm getting close.

Also whoever told the ground controller yesterday you had a pregnant woman in labor on board just to get a faster taxi clearance, I'm sooo sorry you got denied...