Okay, so I have this friend, and, basically, many years ago he made a sexist girls-belong-in-the-kitchen joke, and since then, I’ve always spiked his tea with salt. This has been going on for absolute years. After the first few times, it just became habit to put salt in his tea and watch his amusing reaction. It just became our thing.
And I did it today for the first time in a while (simply because we haven’t met up in a house environment for a while) and he spat the tea out instantly like he always does, this time crying “I’LL NEVER MAKE A SEXIST JOKE AGAIN CAN YOU PLEASE STOP POURING SALT IN MY TEA”.