Crossword clues for Cons do it:CONSFlimflamsCONPut one over onCONSTime serversCONCell occupierCONJailbirdCONNot at all proCONTake for a rideCONNEDTook inCONExpo event, brieflyCONMinusCONSoft-serve holderCONSScamsCONHoodwinkCONNonpro?CONJailer's chargeCONMan in the penCONKind of gameCONReason not to do somethingCON__ brioCONChili ___ carneCONReason againstCONSNegativesCONSSome superfan gatheringsCONNEDPulled a fast oneCONSYardbirdsCONPrisonerCONSwindleCONGame that stingsCONAntiCONDrawbackCONThree-card Monte, e.g.CONOne side of a formal debateCONSDupesCONSpam, often (and the start of a split order of rice porridge)CONOne who didn't dodge a charge?CONMeeting for comic book enthusiasts or Santas, for shortCONNegative pointCONPlace to show off some cosplayCONCrookCONSBad pointsCONSPen fillers?CONAnnual meeting, for shortCONJoint tenantCONGame whose outcome is predeterminedCONThimblerigCONTimekeeper?CONSBamboozlesCONSPen pals?CONIt's a hoaxCONHornswoggle