Nope, I heard the same rumor in highschool and it's just bullshit spread by people that can't accept that they missed stuff while driving. If you failed, it's because you missed things, they don't get anything out of failing you.

There are some things that are automatic fails in some states (not checking blind spots, disobeying a traffic sign, 10mph over/under speed limit, and hitting something are all automatic fails in California at least) so that could be it, or you just messed up enough things while doing the initial check or while driving.

At least in California, I think it's 2 weeks between retaking written or road tests. If you fail a second time, try asking the evaluator what you messed up on so you can improve. Everything is marked in points, so it's not just an arbitrary "yeah they drove alright and I like them, passed", they can tell you specifics of what points you missed