I warned folks on 22 January that cash shell Ridgecrest (RDGC) was, at 3.1p, a £13.5 million accident waiting to happen. With folks such as the penny share hucksters at LSE Share talk, employers of disgraced promoter Zak Mir, in full on spiv mode, folks were piling in even though the company had cash of just £2 million and no other assets. It was insane. Still, if Zak says the shares are a buy…