Joke for Today - Ettore in 3-D

Photocredit:

http://mariomasi.files.wordpress.com/2007/01/12872_3d_ettore_majorana_s_cycle_.jpg

un altro italiano, che si fa chiamare “signor Bini”

I dreamed I met the man reputed to be the world's greatest physicist who inevitably had to spend his life in disguise. Is this really the great one?  What question could I ask to know if this is him?  I asked him why no one mentions that having particles that are their own antiparticles could lead to charge violation.  He laughs and says everyone knows this, but they discover them anyway.   Besides, charge is not a physical symmetry.