Discworld synopses sound both ridiculous and totally awesome out of context

• - an ex-conman reforms a post office with the help of a golem?
• - Les Miserables in reverse starring a time-traveling policeman??
• - a seven-foot skeleton and his granddaughter save Christmas???
• - a wizard rescues Australia while his colleagues accidentally invent sex????
• - like any newcomer reading this post is either 'did he use a random plot generator' or 'oh my god I have to read that right now'