I just wanted an espresso. I didn't want to meet yet another face 18 throwaway NPC. Give me my coffee and keep your toadlike mouth shut.

Three files here:
MTS2_NDR_UNI_NoBaristaRel
Prevents relationship establishment with baristas while buying espresso. For UNI

MTS2_NDR_NL_NoBartendRel
Prevents relationships with Nightlife bartenders. Other bar patrons will still converse with your Sim while seated at the bar.

MTS2_NDR_NL_NoServerRel
Will not meet the host/hostess or waiter/waitress during your dining experience. Interactions with other diners are unaffected.

NPCs can still be interacted with normally while they are not involved in a transaction. So if you absolutely must chat up the occasional face 1 waitress to indulge your smock fetish, go right ahead.

Additional Credits: SimPE keeps this game playable and thanks to MAXIS for inspiring me with their ugly, needy NPCs