Social assassin Larry David has taught audiences a lesson or two when it comes to social etiquette over the eight seasons of Curb Your Enthusiasm. David found himself learning, as well as teaching, a lesson this weekend at Curb co-star J.B. Smoove's birthday party after the latter showed up late to his own celebration. Turns out party etiquette varies from race to race. 

A Page Six spy at the 50th birthday party for Smoove which took place on Saturday night at the SLS Hotel in Beverly Hills, Calif. reported Smoove didn't arrive until 10 o'clock. David decided to bust Smoove’s chops about being late, having been in a joking mood since he arrived. Earlier in the night David signed a card for Smoove writing: "Dear JB - You may bring da ruckus but I bring da long balls! Love ya - Larry" references to Curb where Smoove's character said he "brings da ruckus to the ladies" and David's character being diagnosed with "long balls." 

In a video David is seen asking Smoove in front of partygoers why everyone's waiting on him to which Smoove responds it's a "black party." The bit between the two continued with David joking he didn't receive any "black instructions" and finally tearing the house down by telling Smoove, "Jews leave early. Nice to see ya!" as he gestured to leave. Watch the hilarious exchange below as you keep hope alive for a Curb Your Enthusiasm movie