What would you do if you were having a great poker session and then a maniac bet a huge amount as you were preparing to leave that threatened your winning day? Now imagine that the maniac's betting line made little sense and his range was filled with bluffs. Would you make the scary call and put your profit at risk? This video from Joel Wald provides some hand-reading tips and clues on how bet-sizing might impact your decision. It also talks through the very real emotions that go through most players' minds at the end of a session.