I'm a Sith Sorceror and earlier this week my companion was moaning about being in the cantina... after about the third snide comment I was like okay... you want to get smart with a Sith? I took the Diplomacy profession and sent him off to cater a party.
The image of Khem Val hosting a dinner party - with a top hat, monocle and tux - is jolly spiffing.
As for funny stuff, timing stuns and such in Huttball is up there for me: stunning them on the flame jets, or having someone knock/pull someone into the acid pits and stunning them there... Also standing on the balconies and healing your team below, then knocking anyone who comes up to stop you off. Its a good warzone for Sorcs :d