It's a lot like the phenomenon where if you include and and twice in a row, you'll likely not realize the typo.
Isn't the brain a wonderful and scary thing.
it was only after going through all the others that i got it. seems my brain is conditioned that in the presence of 'keep' and 'grass' i should remain off.
issue when you put them on line breaks.
Couldn't you just read the whole sign properly on the first try? Why did you glance over the rest of it? I think that's your fault - and our society these days - and not the fault of the signs, which were cute and funny.
Since this is a result of society, why are you getting all blamey?
The thing is that I understand why someone would glance over something twice before reading it at last. And I'm not going to shoot people who do this. But I still don't think that's a good thing to do, a good behavioral pattern.
In this example, seriously, why didn't you read the sign on the first try? Probably because, as you quoted, you were expecting the sign to be boring shit, not worth reading. But hey, you were told that it is not shit beforehand! So, to have trouble with reading it, you must have: a) not believed that the signs are legitimate content; or b) struggled and failed against your reflexive rejection of the signs as garbage.
The latter option is more probable, I think. You tried to overcome your conditioning and pattern-matching defaults, and finally you succeeded. But you could succeed earlier, had you exercised! You could try to play with optical illusions or do puzzles, or something like this. And after a while you would have no problem at all with recognising the signs in this article.
What I wanted to say in my previous posts is that this lack of ability to ignore reflexes, see and (sometimes try to) understand is a very good thing to develop for yourself, and that unfortunately people are less and less aware that this is the case (scary!), because what they come in contact with is constantly getting larger, cruder and more obvious.