http://oddlyspecific.failblog.org/2010/10/04/funny-signs-i-imagine-this-is-pretty-effective/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+OddlySpecific+%28Oddly+Specific%29&siteId=1000001&feedItemId=136982

Assuming they can read, a jump in some cases, I think this sort of thing might increase compliance.

There will still be those that won't read the sign.

Sign,Sign,Everywhere a Sign,Do this,Don't do that,Can't you read the Sigggnnnn!

First, they would have to be able to read.

Second, they would have to realize that the threat DOES apply to them.

In most cases, neither would apply.

Sue