Cheaters in TDS. I'm not sure what a "line cheater" is specifically, but cheaters have used tricks to get only I pieces etc. Usually they suck so bad it is still possible to beat them.
Lucky Phydeaux... I'd love a few cheaters to knock my score up a bit. Except when the other two players are retarded. I've lost games to cheaters because the other 2 players targeted me, rather than noticing the cheater.