Continuity mistake: At the start of the episode when Del drinks his tea, he picks up the cup with the spoon still in it. When he puts it down the spoon has gone. (00:02:20)
Revealing mistake: At the end of the episode when Del and Rodney get hit by the car, Del jolts forwards slightly before we hear the sound of the crash. (00:29:10)
Continuity mistake: When the waiter is writing down the drink orders, if you look carefully, you can see that he is only pretending to write.
Chosen answer: An apparent long string of illnesses.