Practically everything any D&D blogger talks about is related to either combat or magic. I thought it would be nice to mention something different, even if this is only the germ of an idea.
A PC is in a negotiation with a monster. The PC has hirelings present, the monster has its underlings. Everyone present can hear what's going on and likely will have a reaction to it. The idea is: at certain points, such as when one side demands a major concession or makes an accusation, the onlookers need to make morale checks to determine how they feel about events.
I'm envisioning using the simple 5+ on d6 version of the morale check. Insults and threats from weaker participants provoke aggression from the opposite side; on the first 5+ roll, they hurl insults back, while on the second, they actually attack. Threats from stronger opponents provoke social "retreat" or "panic"; on the first failure, they are visibly frightened by the threat, while on the second, they either leave their master or surrender, begging for mercy or offering to switch sides.