It's never good to put the puck in your own net, but in hockey and a few other sports it happens from time to time.
But you are not likely to see an "Own Goal" like this one.
Saturday night, the Calgary Flames put one in between the pipes when goalie Jonas Hiller left the net unattended after a delayed penalty call.
Which in hockey happens quite frequently. When you know a penalty is coming, you try to run an extra attacker out there until the whistle blows.
Here's the problem: A Flames defender got the puck and launched it back towards the blue line.
Nobody was there.
The puck kept sliding down the ice and yup, it goes in the net. Vancouver Canucks defender Yannick Weber, the last Canuck to touch the puck gets credit for the goal and all Flames coach Bob Hartley can do is shake his head.