"I'm going to show you I haven't given you permission because clearly you're not grown up enough to understand that, not having given you permission, you can't just come look in my house. " And I won't know if they're coming and looking or not. . . so I put a piece of tape over it.
The only thing we all have in common is that we play tricks in order to force ourselves to abandon the quest. The counter-measure is to persist in spite of all the barriers and disappointments.