After Morgan talks about a book he read saying that when people die, they see the white light of heaven, Wyatt quips, "What about Hell? They got a sign or something?" Seems just flippant, but Wyatt was well educated, and his best friend is the Latin-speaking Doc Holliday, making this less of a quip and more of an allusion — according to Dante's Inferno, it in fact does: "Abandon all hope, ye who enter here."
Faro was notorious for being fixed. The deck box was almost always rigged, and the dealer could control the results when he desired. Wyatt is heavily implied to do this twice:
The first time is when some jovial gambler places a large bet and Wyatt playfully warns him against it. The fool proceeds anyway — Wyatt probably forced a loss to get that massive stake.
The second time is when Curly Bill plays, and wins $500. Morgan begins counting out money before Wyatt even touches the cards, meaning the Earps let him win to defuse the situation when Ike was provoking him. Wyatt also even physically moves Curly Bill's bet to the winning card before drawing.
After Doc insults Johnny Ringo at the faro table, Wyatt tries to defuse the situation by telling Ringo that Doc is drunk; Doc responds by saying, "In vino veritas." ("In wine there is truth.") Later, after the OK Corral shootout, a stumbling-drunk Ringo threatens the Earps and Wyatt specifically, in view and earshot of Doc. Curly Bill laughs it off just as Wyatt tried to do, by telling the Earps and Doc, "he's drunk, that's all." But Doc is deadly serious and would've killed Ringo on the spot if Ringo had tried to draw, drunk or not, and is just as deadly serious later when he does kill Ringo. Threatening Wyatt is something nobody ever got away with around Doc, and "he's drunk" doesn't work on Doc either, because Doc knows: "in vino veritas."
