Buttons can be accidentally clicked, when switching by clicking in the game window.
1.Open Minecraft without a full-screen.
2.Open a screen with clickable buttons.
3.Switch to a window that is not the game.
4.Click the inside of the game window to switch to the window (don't click any buttons).
A button will be accidentally clicked (the button corresponding to the horizontal direction of the click direction will have a more possibility to be clicked).
No button will be clicked.