Tropicals & Tender Perennials: What is chewing on this one?, 1 by hcmcdole

hcmcdole wrote:
Could've been a big caterpillar based on the kind of damage shown.

Could it be mechanical damage and the plant scabs over the scarred, broken part of the leaf?

I think this is what I have on my Blue Wings begonia - a branch or pine needle penetrates/breaks the leaf and the plant repairs the wound as best it can. Not show worthy but the damaged leaves can still be used for propagation if one so desires.