If you think that laughing at something can make the moment light and happy then you’re wrong.
You might have issues with controlling your laughter at serious moments but, that’s your problem isn’t it? If you think that everything could be solved when you laugh at the problem then you need a fact check. The other person might be as serious as hell with the situation at hand but because of your immature attitude and your stupid laughter it will make you land in some serious trouble. Mind your laughter. Specially when I’m angry.