FOO.class

    @SideOnly(CLIENT)
    public final void onKeyEvent(KeyEvent e) {
        if (e.getEventType() == PUSHED){
            if (e.getKeyType() == REDACT1){
                /*
                    REDACTED
                */
            }
            else if (e.getKeyType() == REDACT2){
                /*
                    REDACTED
                */
            }
            else if (e.getKeyType() == REDACT3){
                System.out.println("BARIFYING");
                doBar(Minecraft.getMinecraft().thePlayer);
            }
        }
        else{
            /*
                REDACTED
            */
        }
    }

    public final void doBar(EntityPlayer p){ //only the server needs an EntityPlayer
        if (SIDE == SERVER){
            System.out.println("SERVER RECIEVED THAT CLIENT WANTS TO BAR");
            /*
                REDACTED
            */
        }
        else if (SIDE == CLIENT){
            System.out.println("CLIENT WANTS TO BAR");
            Main.NETWORK.sendToServer(new PacketRequestFOO());
        }
    }