I'm going to say 'cowardly'. I just don't buy the idea that Joel is super-intelligent and calculating. I think he'd like to think he is, and works hard to portray himself as intelligent to a house full of airheads. Compared to them, he actually looks intelligent.
where do eggs come from
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Spoiler:
CBB15: Perez
CBB16: Janice
CBB17: David, Angie, Tiffany
BB14: Gina, Dexter
BB15: Ashleigh, Christopher, Chris
BB16: Jade, Eileen
Survivor WA: Joe, Shirin, Mike
BB16 US: Nicole, Zach
BB17 US: Da'vonne, James, Jackie, Meg
BBCAN4: Mitch, Nikki, Ramsey, Tim