Fishers tend to be a surly lot, mainly because if they are carefully pulling in a fish, their fingers have no time to type. It would be different if we had headsets for games as they do on game platforms.
If they are not fishing and just sitting there, the user probably left the computer for a call of nature or to fix a sandwich. Or the phone rang.
OR, they are just shy. Happens.
The Bucket is the grid of 18 squares on the left that show what you have caught. When you have caught 18 items, the bucket is full. If the game does not save your bucket of fish you have so painstakingly caught, you get mad.
More on fishing
here.