they are going to a convention, which they thought was for awesome monsters, but, little did they know, the convention was being crashed by David Bowie impersonators! the horror! eventually, the David Bowie impersonators leave, but they are really freaked out, so they go home. Unfourtunately, they find that a neighbor came in through the window and stole all their books written by Kurt Vonnegut. Then, amid their immense sorrow, they decide to go to the library, soon they forget the whole thing.
Thanks for the comments. My first idea was to have them in a police line-up, and "wouldn't that be humorous since none of them look alike" was my line of thinking. But then I thought that was cliché, so I decided to have them going for a little walk, simple as that. They could be headed to a party, I think. Not sure. Anyway, thanks!