Sometimes that stakes that are being played can be dramatically high due to aggression or perhaps due to poker bluffs used by the players that are in the table. In some cases poker bluffs are made by those that surely have believed that they did have a winning hand, when truly, the opponent was slow playing and misleading with an even better hand! When you tried to slow play them, they were in turn slow playing you! This can be kind of tricky.  All such situations are common in poker bluffs.