I know we have gone over this, however I think that we should not dismiss this idea so lightly.
Say she did have a small bag containing urine, concealed near her elbow, with a thin tube that ended at her wrist (Spiderman Web Toy like). When the test starts she takes her time to see where the camera is, minutes pass & nothing happens... 10 minutes in, all the observers have lowered their guard thinking it's a waste of time and nothing will happen...
She skilfully moves to block the camera and gets hold of hold Jeff's hand(s). They are both standing, she holds his hand(s) near him, just in front of his stomach so that her wrist is pointing at his upper thigh, and only inches away (having carefully noted which way he's anging). Using her elbow squeezes the bag against her body. Only a little liquid need hit the target, she moves back and the camera sees the small stain (the protocol makes no mention of the volume of urination needed to succeed, a damp patch the size of a poker chip would do! Indeed the smaller the patch the better) on his trousers. As she moves away she masks any drops on the floot with her shoes by scuffing the floor & elevates her hand to catch any seepage.
Given that scenario she could pass the test.
O.K. she wouldn't be able to do it with the $1m challenge, but remember,
no one has yet passed the preliminary test. Being the first to pass this test would be almost as big a victory to woo believers, we all know that they need only a hint of success to propound years of future delusion.
Now I know you said that Jeff or an observer may spot it, but as long as the camera doesn't see it she can say that he did urinate and its her word against yours.
Jeff says "But, my underware is dry!" But how can you prove it, without going out of camera shot. Jeff can't drop his trousers and say "Here, feel my underwear, it's bone dry!!" She'd have you for sexual harassment!. Also you can't insist on searching her.
I know it sounds far fetched, stupid even, but that's the trouble, because the whole idea is so laughable... paranormal urination

, we may risk dropping our guard here not just our jaw.
The nuttier the claim, the more vigilant one must be!
After all this I still hope she turns up on Monday