Ep.18: Slade sets off for the City to witness Zoot's "Second Coming". Ruby asks for the rent he owes, just in case he doesn't come back. He tells her he's left his bag in his room. She'll find enough to cover what he owes.

Ep.21: Slade returns to Liberty after an extended stay in the City. Ruby is wary of what he might have brought back in his bag. Just some parts for Ram he says; you just can't tell if Slade is being totally honest. Anyway... this is presumambly the same bag that Slade left in his room in Ep.18