OK.  Having just returned from the “trade show for the trade show display industry” out in Las Vegas I have to add one more major “Don’t” to my list.  Which is…  don’t interrupt an interested prospect to talk to someone from your office on your cell phone.  I know it’s hard to believe, but a sales rep actually did this to myself and a colleague while we were inquiring about a new product that was being introduced.  We waited around a couple of minutes, but after that I said enough is enough and we excused ourselves. 

 Not surprisingly we never did make it back to their booth.