Keep your smelly shoes to yourself.

There is a general assumption that experience is a good thing. This is reflected in phrases like "walk a mile in my shoes", "university of life".
Plainly, though, experience is not always useful. I am sure that the multitude of Israelis who support their country's recent behaviour do so because their quite genuine experience teaches them that it is appropriate. Similarly, Hizbullah no doubt feel their behaviour is appropriate, because that stems from their own life experiences. Each in turn creates the experience of the other. And thus we are inexorably led to unstoppable cycles of violence and barbarity in which the most bestial behaviour seems reasonable. So, the next time someone says "walk a mile in my shoes before you judge me", you may want to be sympathetic, you may want to express understanding, but if the behaviour can only be justified by "walking in their shoes" then that should be a big glowing red warning to you that there's a problem here.

Some people will use phrases like "I live in the real world" to justify their holding certain opinions. This often seems to mean that they in fact can't justify or explain them other than by making this assertion; it's the sort of crap bigots come out with to justify ill-concieved stereotyping. It is an attempt to make a point inarguable - if you don't agree, that's just because you haven't had enough experience to understand. It is a poor cloak for ignorance. In my experience.