Irony of "The Chaser"

Irony is when the unexpected happens, when something you know will not happen it happens. In the short story The Chaser there are many examples of irony; one strong example is when Alan is seeking for a love potion he finds this man who sells love potions. The man is old and wise. When they first start talking the man mentions a poison which he calls an antidote, Alan is disinterested in the poison and asks the man for a love potion. Of course the man has a potion, Alan is very excited because he already knows who he is going to use the potion on. The man sells him the potion and Alan pays the old man, then saying good bye. The old man says “Au Revior” meaning see you later. The old man knows that the love potion will make Alan’s soon to be wife annoying and he will eventually want to kill her. The irony is that Alan thought everything would be perfect.