Tim Drake's Coffee Ice Cube Secret
You know what Tim Drake definitely has in his fridge? Coffee ice cubes. Not those wimpy regular ice cubes that water down your perfectly crafted iced coffee. No, Tim makes his with actual coffee mixed with a bit of milk and sugar, frozen into perfect little caffeine bombs.
I'm convinced he started doing this during those long Gotham nights when he needed to stay alert but couldn't stomach another hot cup. The first time Dick caught him popping one straight into his mouth at 3 AM, he just stared in confusion. "What? It's efficient," Tim shrugged, crunching away.
Bruce probably noticed the dedicated ice cube trays in the freezer labeled "DO NOT TOUCH - TIM" but never commented. Alfred silently approved of the resourcefulness, even if he considered it somewhat unorthodox.
Now Tim keeps a supply at all times - some at the Titans Tower, some at his apartment, some at the Manor. And occasionally, when he's particularly sleep-deprived, you might catch him eating them straight from the freezer like tiny coffee popsicles.
Smart vigilantes know: water ice cubes are for amateurs.