This may sound retarded but I'm willing to risk it lol. I've been trying to gather info on false positive drug test and someone told me they had that happen to them but this was their reason: before being tested they put the toilet seat down, then in the process of peeing the majority of the urine bounced off her hand before going into the cup causing it to read positive. Now, aside from being completely disgusting, is that even possible? (The causing a false positive part, not the peeing on the hand)

Any way that you can think of that peeing on your hand and then into the cup would change the readings at all? I know I can't think of anything that would make sense. Seems this is just a story.

Did she wash her hands afterwards?

No, it would not cause false reading