[Ghoulish Delight]

Well, the story is that it happened pretty quick, the guy was trying to move a bucked of the custard, dropped it, and in his attempt to catch it his hand wandered too close to an automatic mixer, finger gets chopped, lands in the custard. Other employees rush to help him, while the drive-through guy (probably oblivious to what was going on) turns around to serve some custard, and scoops from the top of the nearest bucket, which happens to be fingered. An odd series of events, but plausible. Things get pretty chaotic behind a food service counter, it wouldn't surprise me.