soon to my brother in law and his mate were at their friends birthday party a few years ago and as a joke, the friends wife decided to play a joke on him by recording the lotto from the previous week and then bought him a lotto ticket with the winning numbers from the same draw, everyone knew what was happening, obviously apart from the guy himself, so anyhow they are all drinking having a laugh and they decide that the time has come to play the trick, so hand him the ticket and proceed to to show him the video, of course him thinking that he has won the lotto starts going crazy, and the wife playing along says oh my god we have won, we've won, we've got all the money, to which the husband stands up saying we've won, we've won, we've won nothing, I've won the lotto, I f**king hate your guts, then points to the wife's sister, who is sitting with her husband, and says I've been banging her for the last 3 years and now we're leaving together, you can go f**k yourself, as expected then all hell breaks loose and the party is swiftly brought to an end as well as 2 marriages, talk about a joke massively backfiring lol