Don't you hate when you wave at someone you know but they don't see you, so you have to quickly pretend to fix your hair in order to save face?
In case you haven't heard, the celebrity equivalent of this situation happened at the weekend on stage at the Golden Globes - and it made your awkward hair fix seem like child's play.
When Rami Malek went to greet Nicole Kidman on stage at the awards ceremony, he got completely and utterly blanked by the actress.
The snub was obviously not deliberate: Nicole simply hadn't clocked Rami coming up behind her on her right-hand side - but this didn't make it any less dire to watch. It also didn't stop it from going viral on the internet.
But how did Rami feel about it? He opened up about the humiliating incident recently on Jimmy Kimmel Live, and it's safe to say that his reaction is all of us.
After being shown the clip, the actor giggled and put his head in his hands in embarrassment.

Admitting that this was the first time he had seen the footage, the 37-year-old actor said: "I've known her for many years, despite as it may seem from that video, so I thought I could easily go up and say 'hi' but in a moment like that, it turned out to be very awkward."
He went on to acknowledge that the scenario was likely to follow him around for a while, telling Jimmy: "I have a feeling this is probably haunting me on the internet... that's alright. I got love from Keith [Urban], her husband. Massive Queen fan."
Although he was on the outs with Nicole for a brief moment in time, Rami is flying high in all other aspects of life.
The Bohemian Rhapsody star won the Golden Globe for Best Actor in a Motion Picture Drama on Sunday night. In his acceptance speech, he described himself as "beyond moved", stating: "My heart is pounding out of my chest. This is a profound honour to be counted among such extraordinary actors, I am privileged.
"Thank you to the Hollywood Foreign Press and to everyone who worked so tirelessly on this film. I have to thank [producers] Graham King and Denis O'Sullivan, you've worked over a decade to make sure this story was told. Thank you to 20th Century Fox, you believed in us."
He ended his speech by emotionally thanking Freddie Mercury himself, saying: "I have to thank my mom and my family. Of course, to Queen. To you, Brian May, to you, Roger Taylor, for ensuring that authenticity remains in the world. Thank you to Freddie Mercury for giving me the joy of a lifetime. I love you, you beautiful man. This is for and because of you, gorgeous."
Hopefully, Rami's inevitable shelf of awards will console him after the Nicole snub.