Same here. Got denied a js by an agent 15 minutes before push. Along with me there was a young Mom and baby who had been trying unsuccessfully to non-rev all day. I went to the window and saw the Capt. was an acquaintance and tapped my watch.
He got out of his seat and came up to the boarding area. When I told him the situation, he went to the agent and said, "I'm going to take a dump. I'll be back in five minutes and when I get here, I expect very seat on the airplane including the Jumpseat to be full," and walked off.
She and the baby got the last seat in back and I got the Jumpseat to work.