Photobombing is great isn't it? There's nothing quite like ruining some else's precious memories by being in the background.
In university, it seemed like everyone was in competition with each other to see who could pull the most disgusting face behind group of friends getting their photos taken at the student union nightclub.
It made for very interesting viewing the following day when the pictures went up. I imagine the real losers were the photobombers... but it's all in good fun.
Canadian prime minister Justin Trudeau was out for a jog when he ran straight past a load of kids getting ready for their prom. I don't think he meant to photobomb them. He's a nice guy. Plus, he's Canadian and they're well known for their polite and caring nature. Very much like us Brits.
His official photographer, Adam Scotti, Tweeted the following image with the caption 'Prom season in #Vancouver'.
Prom season in #Vancouver pic.twitter.com/pgLUqdkgjd
- Adam Scotti :flag_ca::camera: (@AdamScotti) 20 May 2017
As you can see from the picture, the kids don't really seem to notice Trudeau running past. I mean, what are the chances? The UK equivalent is Theresa May speed walking past a load of high school children. You wouldn't expect it.
Anyway, one student, Constantine Maragos, spoke to Canada's CBC and revealed that they managed to get him to jump in for a proper selfie.
Constantine explained: "We were just taking photos and hanging around talking, and then Trudeau, he just comes running,
"At first, we were like, 'Why is the prime minister of Canada running the seawall? And then we started yelling for Trudeau to get in the photo.
Of course he obliged.
And how did the students feel afterwards? "We were stoked," said Constantine.