Did you know that during the Victorian era, people used to send each other "vinegar valentines"? These were the opposite of sweet, romantic cards. Instead, they were used to insult or criticize the recipient, often in a humorous or sarcastic way. Imagine getting a Valentine’s Day card that pokes fun at your bad habits or quirks! While it sounds a bit harsh, it shows that even in the 1800s, people had a sense of humor about expressing their less-than-romantic feelings. Would you dare send one today?