Shell threatened to stage a rooftop protest - aiming to outdo the previous attempts by doing it in the nude!
Her mission ended in failure though as she lost her nerve, fearing Big Brother would tell her off, the official Channel 4 website reports.
Initially Jason and Victor welcomed Shell's idea, but they backed down when they realised they might get into trouble if they helped her.
Michelle egged Shell on until Stuart emerged to watch her - the jealous Geordie then became concerned that her boyfriend may get an eyeful by looking up the blonde's towel.
As Stuart inquired what was going on, Michelle abruptly told him to close his eyes.
Shell then prepared to scale the wall until the voice of Big Brother intervened, warning her she was breaking safety rules.
She failed to reach the summit or removed her towel and aborted her mission.
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