Anyway it is the arrogance and aggressiveness which adds fuel to fire. Even the peaceful looking person will do such things that his friends and relatives who know him for a long time are baffled and completely surprised with his sudden change in behaviour.
Some people are positive in their attitude while some are having destructive feelings in their mind and they will do all sort of destruction if a conducive environment is available to them. They are the biggest contributors in any spoilsport incident.
Knowledge is power.
'Idhuvum Kadandhu Pogum "
Even this challenging situation would ease
"Do not give up, things might not favour you always"
Unfortunately such people do exist and we have learn to live with them. If we have been affected by a spoil-sport attitude of a person, then if we look back often we would have crossed paths with such an individual and our interaction may be not been all that cordial.
In this context, we have to be careful when we speak outright with relatives or colleagues at work because our stern remarks or unpleasant truths can affect them and such individuals will always jump at a chance to be a spoil-sport in our affairs.