Sometimes, that awkward moment arises, when, well...your little guy puts his hand up in class.
But don't worry about it - even the great and the good have fallen victim to this particularly pointy embarrassment.
Ladies and gentlemen...from everyday folk to presidents and popstars, we bring you the very best awkward boners.
1. Royal boner
Look at him there, telling everyone in the area that he's finally managed to get it up.
2. Ballet boner
En pointe. Literally.
3. Bieber boner
Little Justin's growing up.
4. 70s boner
This guy proves that nostalgia isn't always warranted.
5. Hova boner
99 problems and a boner is one...
6. Train boner
Ladies and gentlemen, can I see your tickets and erections, please.
He'll be back. Right after he's got rid of his boner.
8. Presidential boner
He. did. not. have. sexual. relations. with that penis.
9. Beach boner
Head-in-the-sand, pretend-it's-not-happening boner.
10. Justin Trousersnake boner
Ain't nobody loves you like he loves you. Evidently.
11. Excited fan boner
12. Fancy dress boner
To infinity...and bellend!
13. Wrestling boner
Contact sport boner.
14. Football boner
I mean, that's impressively visible. There's no way people aren't gonna see that thing.
She's smiling. But she knows. She just doesn't want to draw attention to it.
15. Tennis boner
I don't want to say "New balls, please" but hey, you only live once.
New balls, please.
16. Drug cheat boner
Because Lance Armstrong also tested positive for Viagra.
17. Basketball boner
NBA - National Boner Association.
18. Actor boner, dahling
Is this a boner I see before me?
19. Burqa boner
20. Park boner
Hyde Park? Hide your boner.
21. Jessica Alba's boyfriend's boner
Yeah, don't really blame him, to be honest. LEGITIMATE BONER.