arsene wenger has got taunted by football 'fans' over the years, singing the same song about him being a paedophile(which he aint). did you ever see him turn to the other fans taunting them back when the arsenal are 3 or 4 up? no. im sure he knows that it's make it worse.
i know lennon is in a far more volatile situation but that cupping gesture he make is only making things worse.
having said that i dont think there is anything he can do to stop it