Avena says he told Bernie Cantor that Lutnick and his crew were peeking at the waterfall while trading.

FORBES: Getting between the wall and the wallpaper

Solar thermal projects, however, are bigger than solar PV installations and they require more complicated engineering and design, the kind of projects Avena excels at.

FORBES: Solar Thermal or Solar Photovoltaic? Areva Says 'Both!'

Cantor put a stop to it, Avena says.

FORBES: Getting between the wall and the wallpaper