I, too, dislike grumps and gossips. What we loosely call "gossip" has many facets, but it is often destructive and harmful, particualrly if it damages people's reputations. We must be careful about grumps. It is worth finding out what is making grumpy people grumpy. Sometimes it may be personal difficulties which are not so easy to leave behind when one comes to work.
On a more personal level, I thoroughly dislike people who are inconsiderate of others, whether it be in terms of the level of noise they inflict on other people or the slovenly way in which dump things in the kitchen sink, leave tea-towels on the floor (
) and leave cupboard doors open. Making things pleasant for everyone is a GOOD thing to do.
