The world can be....

....a cruel place at times. Some people, it seems, delight in being cold and critical, judgemental and disapproving. They show no respect.  They will go out of their way to force others to go out of their way. Negativity, of course, begets negativity. Intolerance begets intolerance.

But friendliness fortunately is just as contagious.

It is with narrow-souled people as with narrow-necked bottles: the less they have in them, 

the more noise they make in pouring it out.