This is when a game encourages the player to make a certain specific accident that might illuminate something for them. Compare with I Meant to Do That
- Braid: in an early part of this game (1-3: "Hunt"), there is a jump that the player is likely to miss after many tries. When they miss it, they have to do a lot of walking and climb two ladders to get to a point where they can do it again - but alternatively, they could rewind time to get back to the jump. The part exists to encourage the player to make proper use of their time-rewinding ability.
- Catacomb Abyss: In this game, doors can be opened by shooting them. How do we get the player to learn to do this? We have them fight a zombie, and we put a door nearby. While they are frantically shooting the zombie, they are likely to miss it and hit the door, opening it. 
- Mega Man X: To teach the wall slide, the devs lure the player into a situation where there's very little they can do. The designers further lure the player to fall into a tiny gap between two girders. In falling into the gap, they will notice wall-sliding. Arin "Egoraptor" Hansen talks about this here.
- Metroid series: Many of the 2D series entries begin with you having a choice about whether to go left or right. Most games are about going right, so there's a good chance that players expecting Metroid games to be normal games will go right. However, going right takes you to a dead end, communicating to the player that this is a game about exploring, where you have multiple options about where to go.
- Portal: The second part of test chamber 10 in Portal has a pit with a tiny ledge over it. Stand on it, and you'll probably fall off, into the pit, a boring place to be. The only way to get out of the pit is to put a portal on the floor, which will take you back to the door of the level. But the cool thing is, to this puzzle involves having a portal on the floor, so they're luring you into solving it.
- Quake: to introduce the explosive box, the game locks you in a small room with a low-power enemy. The room is set up in this T-shape which will almost certainly cause you to shoot across the box at the enemy - it's probable that you'll miss that enemy and accidentally hit the box, which will cause you to see what the function of the box is.
- Wario Land has players discovering how to progress by basically running into things that in any other game would kill them.