Of the 190 short films the Three Stooges made for Columbia Pictures, only five actually had pie fights. However, those classic scenes sum up all there is to know about the mythic meaning of pie fights, as well as the needs they address and the techniques involved. I urge you to study up on the Stooges' teachings concerning these matters -- and put them to immediate use.
Nothing could be more effective in dealing with stalled negotiations, convoluted mind games, superficial exchanges, excessive gravity, and bureaucratic slowdowns than a righteous pie fight. You can find a Youtube clip of a Three Stooges pie fight here: tinyurl.com/yvv8hm.