The first line is from the famous 1971 film Dirty Harry. It directly precedes the even more famous line, “”Do I feel lucky? Well, do ya, punk?” In that particular scene, Clint Eastwood’s character Harry Callahan has his gun on a bank robber and intimidates him by making him wonder if he has any bullets left. The robber doesn’t know the answer to this question, although to be safe he assumes (incorrectly) there is still one round of ammunition left.
However, in this strip, the Author has devised a comedic mash-up wherein the bank robber is replaced by Raymond Babbitt, an autistic savant with near perfect memory from the film Rainman.
You see, the joke here is that “Rainman” wouldn’t have any problem remembering the number of bullets fired because he has an excellent memory.
