(Completely second-hand)
Supposedly Rondo was coming to Portland to walk through the PF. I think it was a pre-draft workout or something. He's getting the tour of the place, and is asking for an ice cream cone. Over and over. Some Blazer assistant-to-someone-or-other runs out to get him one. Finally comes back in and gives it to Rondo. Dude didn't say thank you or anything, took one lick and started walking away. After that one lick, he just dropped the cone on the ground and continued with the tour/meeting.