The Day I Flunked Chemistry - S1.E7

Hank thinks new boy Ben is totally cool, and is amazed to discover that the feeling is mutual. But will Ben feel the same if he finds out about Hank's learning difficulties? Hank isn't willing to take the risk and so decides not to tell him. That plan has disastrous consequences when Hank misreads an experiment, leading to the evacuation of the science block.