Back in November, an NBA fan called out Trevor Ariza of the Houston Rockets on Twitter. At that time, Ariza didn't back down, responding to the fan's tweet.

Now Ariza has instigated conflict with that same fan, sending him a direct message on Twitter with the fan then posing a screen shot of that conversation.

This can only end badly for both Ariza and the fan. Let's hope they come to their senses.