Mal: All right, let’s get these crates stowed, I don’t want any tourists stumbling over them.
Kaylee: We’re taking on passengers at Persephone?
Mal: That’s the notion. Could use a little respectability on the way to Boros. Not to mention the money.
Jayne: Pain in the ass.
Kaylee: No, it’s shiny! I like to meet new people, they’ve all got stories!
Jayne: Captain, can you stop her from being cheerful, please?
Mal: I don’t believe there’s a power in the ‘Verse can stop Kaylee from being cheerful. Sometimes you just wanna duct tape her mouth and dump her in the hold for a month.
Kaylee: I love my captain.
Firefly: Episode 1 – “Serenity”