i ve messed it up bigtime time and again while live betting, till i learned, hopefully, to keep my cool. Friend of mine who works at book told me it's the single most profitable thing they got, most punters can be "cold blooded" when they bet and cap but during the game the action can get to you, go to your head and irrational decisions are very common place, under or overestimating odds and chances, chasing etc. etc. what else do you want to know, what sports do you live bet?