I've been watching Dix Pour Cent (known as Call My Agent on Netflix). It's a French TV show about an agency of actors' (not writers') agents. It's in French with English subtitles, which gives me a chance to pick up a (very) few French phrases ( parce que mon francais est tres mauvais). It is a very entertaining show. Those agents do carry on.
Watching foreign TV shows with subtitles is relaxing, because I can't do anything while doing it excupt read said subtitles. This explains why I watched two seasons of a show from Iceland.
Today I listened to Suzie Townsend & Ten Questions with a Literary Agent, a Write or Die podcast. It's a totally different experience. Nothing to see, nothing to read. What Townsend has to say about agents' assistants made me think of the agents' assistants in Dix Pour Cent, though.
Agents' assistants appear to do a great deal.