Rogues and Politicians (2007)

From publisher blurb:

The chronies have gathered at Styx for a friendly barbeque. There are burgers, hot dogs, ziti, potato chips, soda, cake, ice-cream, and whatever else the chronies want. Play out this scene for a bit.

Someone will discover (the hard way) that what looks like a whipped cream topping on the cake is actually shaving cream!

Hunter, the spanners’ mentor, is a bit put off by this, but she knew something strange was going to happen today (she knows from a dossier that Tommy arrives today and that the novices meet Helmut at the same time, but she doesn’t know about each of Helmut’s pranks specifically; she guesses that this is Helmut’s doing, but holds that information unavailable until the PCs meet him). She asks the corner to find out who put the shaving cream on the cake. She also says she’s going to make another cake, and asks someone to get some real whipped cream (she specifies Cool Whip).

Hunter declares a rendezvous one minute Up.