**** I know.
Puerto Ricans and Brazilians the worst.
If you were at Domes or some crowded spot I wouldn't be surprised. I was there less than a month ago though and didn't have any problems with anybody, met several guys, some from Augadilla, some from San Juan, some from right there in Rincon, all were friendly and shared the peak with me at Sandy Beach, Pools, Antonio's, etc.. But that was my experience, then again, I didn't bother with packed crowds, there are too many spots there that aren't packed to bother with it. Not sure why it would piss them off though.