If you are ask to leave and escorted out of a public building by an inhouse security officer. the security officer escorts you to the stairs but never out the door. while walking down the stairs he explains if you ever return you will be arrested for trespassing. when you get down to the foot of the stairs, you are not outside the building and decide since the security guard was a smart ass you want to say good bye to him to be a smart ass back. so you go up the stairs and he detains you until the propper authorities arrive to arrest you for criminal trespassing. Are you still trespassing if you never left. And if they are kicking you out should they not escort you completely off the property, especially when you are drunk?