Is this janitor trying to fabricate a story to make FBI agents look like they aren't doing their jobs? Sorry, friend, the evidence is in-- the FBI did fail, has failed, historically in many investigations. A janitor can't inflict so much damage as the truth.
P.S. I've seen James Woods recount his story a couple of times and I believe he DID say he took the same flight a WEEK earler than the WTC flight. I think Snopes is wrong.
But why the bathroom question? What's the purpose or intent?