I do feel like I've played plenty of the hard mode where after figuring what the UI currently does, you have to debug the VB6 source, find the right edge case, and make it even edgier based on some semi-sensical business decree.
"How hard would it be to add another checkbox here, when this radio button is both shown but not selected, but only on the third Wednesday of Fall months when the Accounting Winds howl, that when checked pops up this other spreadsheet we need?"
Sigh.