I have always been told that there is no such thing as can't....

I have always been told that there is no such thing as can't.
You would have to have fairly intimate knowledge of the dark markets, ETFs, CFDs, as well as the markets that purport to be transparent. CFD traders and some special large organisations can effectively short many "small caps" to their knees from their controlling positions in ASX listed stocks.
Believe this and get out, or stay in for the gambling ride. Don't be disillusioned that markets are fair and transactions occur between willing sellers and willing buyers each gaining on every transaction, where sellers lose voting control. The ASX is the wild west (plaything of the USA).