You won’t be killed, but you may get yelled at by a power mad admin for fucking up something on the form, or for trying to get reimbursed for something you shouldn’t be reimbursed for, even if you weren’t trying that, or just demanding obscure documentation you didn’t keep… leaving you contemplating

Your nominal hourly rate times the number of hours this is going to take you divided by what they owe you. It’s mostly the frustration of already being out the money, usually for months, & then the ‘cost’ of getting it back… especially when it’s from a grant YOU WON…