In the mind of a fish

I have done some observing and have noticed a few things about a fish.
They have no idea about the maths involved when playing poker and care not to learn them, they don't care if that was a correct move or not, all they think is "It's there or it isn't".
A fish will often call you down to the river with second pair, a draw or better against the pot odds so you can't use the pot odds against them because they are clueless about such things, so you really can't bluff a fish by giving them improper odds to make a call because they have hit the board or are going to try to hit on further streets with their draw.

A fish will often call to most raises in LP with most connectors provided that there are 3 or more that made the call of the initial raiser.
Why? you may ask, because they think "I have a 56 and there are a few others who called before me, they must have high cards so that means my low cards are still in the deck".
Yes, this is how they think.

A fish will often call off small pairs in hopes of hitting a set even when they should be in push/fold mode and most will call an all-in regardless of your table image because they don't see that you have only pushed when you were strong, they only see the pair in their hands.
If they win the hand by badbeat and you lash out against them, they will say, "You should have bet more pre-flop and I would have folded", they lie, they would never have folded.

The best way to play against a fish is to make them pay for their cards and hope they don't hit, they will often call off most if not all their chips with a flush/straight even when the board is paired