[V] Can joke about vampires even if very sad

My teenage sim was on a date with her crush while she was having a Time to Wear Black mood swing (sad + 50). One of the date tasks was to joke with her date. Every joke interaction save "Tell Joke about Vampires" was grayed out because she "is too Sad to do this!" Likewise, the Funny->Stories submenu was grayed out for the same reason, and under Silly Behavior, all save Give Funny Gift were grayed out for the same reason. (Don't know if Give Funny Gift is a pack or base game interaction. Her Comedy is only level 2, so other pack-linked higher level joke and silly behavior interactions may need to be looked at.)