Reminds me of a funny thing that happened last season. My son, a soph, was catching a senior pitcher not known for his charm, who had a habit of changing grip and throwing the 2 seamer without any warning. It would run up a bit and hit the padding of my son's glove.
So my son goes out to the mound and tries to arrange a sign for the pitch. The kid tells him: "Your job is to catch whatever I throw."
I'm pretty sure my kid found a way to disabuse him of that notion.