Don't Rain on Your Parade: A Friendly Reminder

Don't want to rain on your parade, man.. This is a friendly way to say that you don't want to interrupt someone's enjoyment or plans. It's a polite expression that acknowledges the other person's excitement and desire to have a good time. The phrase is often used to express a desire to avoid being a negative influence or to acknowledge that someone might not be receptive to bad news or unwelcome information.