//discussing non-inertial reference frames as viewed by two observers Schafer: I'm sorry. This is hard to imagine. Some of you might actually have two friends! Oh, did I say that out loud? Andie: Nils only has one friend on Facebook. Schafer: Nils, is that true? Nils: *nods*
Andie: ...so then we ended up meeting a bunch of Italian guys. Li: How did you know that they were Italian? Andie: They had really oily hair. Shirley: Are you sure it wasn't grease?