[tnuoccapass]

Rational is used wrong about 99% of times. People will say something is irrational because for instance they will have some math equation that they will say about that they will say things are irrational. The problem is that their equation is wrong and even worse the equation is usually the least wrong thing they are wrong about about everything.

[cvick]

Yeah, I find that people use "Logical" wrong as well, or, more specifically, "Not Logical" or "Illogical". When asked to explain why something is or isn't logical...blank stares.

[exolymph]

I think "in various different ways" could be substituted for "wrong" in your first sentence. Language is fluid and fuzzy.