There's always that one friend who is just perpetually moody and this ruins the mood of every social gathering or event you're with them for. The moody friend can be a pain in the arse, and they will dampen the spirits of everyone around them. They're either complaining, sulking, or making snarky comments.

This type of person needs to stop wallowing in their own misery. They need to realise that their actions are making everyone else just as moody. I just want to shake this type of person to be honest.