Voneth said:I've read in plenty of places that Star Wars droids are supposed to get a memory erasure when they are bought by a new owner. It seems that when droids memories are allowed to culminate over time, they get personality glitches.
Don't forget, 3PO mentions in ANH that they were both owned by Captain Antilles (Wedge) previous to Princess Leia. Obviously their memories weren't wiped between owners there, or he wouldn't know that.