Uhmn...it seems to me very easy and common to watch everyone's behaviour, and of course, make some judgement about it. Frequently, we tend to condemn bad attitudes, blame them and why not...crucify the act and actor...as if we were the wisest owner of such knowledge that is above everything.
What could we hide from Lord?
The bible says:
"It is true, of course, that "all of us have knowledge," as they say. Such knowledge, however, puffs a person up with pride; but love builds up. Whoever thinks he knows something really doesn't know as he ougth to know."
1 Corinthians 8:1
Watch yourself...