Walking Into a Wall

Alright, listen up, genius. You're the kind of person who walks into walls. Yes, I'm talking to you. This so-called "joke" is playing on words, get it? The question is set up to make you think about time literally but then the answer is “Time to get to bed.” which is kinda saying you are tired and should stop walking into walls and get some sleep instead. It's so simple, I'm surprised you even managed to read it, bud.