I'm sure there are interesting counterexamples here but all I can think of is the anti-dentite episode of Seinfeld :)... https://en.m.wikipedia.org/wiki/The_Ya

I'm sure there are interesting counterexamples here but all I can think of is the anti-dentite episode of Seinfeld :)... https://en.m.wikipedia.org/wiki/The_Yada_Yada https://en.m.wikipedia.org/wiki/The_Yada_Yada I guess (anecdotally/hearsay) at least one person has done it to get a free birthright trip? https://blogs.timesofisrael.com/i-pretended-to-be-jewish/ https://blogs.timesofisrael.com/i-pretended-to-be-jewish/