He arrived at the classroom unchallenged having not passed a single soul on his way there. He hesitated before unlocking the classroom door and took a moment to check the door and room ahead for protection charms. He felt slightly foolish after finding none - it was only a classroom, hardly a Gringotts vault. Snape wouldn’t be expecting any students to be stealing potions ingredients for some recreational brewing after all. Still, his paranoid streak meant he repeated the spells before he opened the store cupboard. He was almost disappointed to find it all completely unprotected. He’d heard that Crouch Junior had been stealing from Snape’s stores to brew his polyjuice potion - surely the man should have learnt and taken precautions?